Part One: The Flash Before the Forgetting

What if the brain begins showing warning signs before memory loss becomes obvious?

Sarah and Crystal break down Alzheimer’s disease, dementia, mild cognitive impairment, EEG, and early screening in clear, everyday language. Sarah also shares her connection to the research as a student who has taken several classes with University of West Florida professor Dr. James Arruda and completed coursework related to FVEP-P2.

Dr. Arruda’s research studies how quickly the brain responds to flashes of light and whether that response could become one useful clue for detecting early Alzheimer’s-related changes. The episode also recognizes the years of patience, testing, and persistence behind his recent patent milestone.

This is Part One of a two-part series. Send us your questions about memory loss, Alzheimer’s, caregiving, early screening, or common misconceptions for our planned interview with Dr. Arruda in Part Two.

marionette.dolls.podcast@gmail.com

This episode is educational and is not medical advice.

Research and News

UWF patent announcement:
https://news.uwf.edu/uwf-professor-receives-u-s-patent-for-early-alzheimers-detection-technology/

2020 FVEP-P2 research review:
https://pubmed.ncbi.nlm.nih.gov/32562653/

2021 FVEP-P2 wavelength study:
https://pubmed.ncbi.nlm.nih.gov/33610644/

WUWF Pensacola news coverage:
https://www.wuwf.org/local-news/2024-01-03/early-alzheimers-detection-is-a-team-effort-at-uwf

Transcript

Crystal 0:00

Welcome back to the dollhouse.

Sarah 0:01

I'm Crystal and I'm Sarah and we are the Marionette dolls.

SPEAKER_02 0:20

Make dangers feel like a lucky jug. I should remember you and I still applauding your wicked little plan.

Sarah 0:32

Welcome back to the Marionette Dolls podcast where we pull back the curtain of the human mind. Today's episode is going to be a little different because this is going to be a part one of a two-part episode. We are talking about memory, Alzheimer's disease, mild cognitive impairment, early screening, and a really exciting research milestone connected to Dr. James Aruda at the University of West Florida.

Crystal 0:53

And before anybody hears all those sciencey words and immediately checks out, do not panic. We are not doing this like a college lecture.

Sarah 1:02

Not at all. The whole point of this episode is to take something that sounds very complicated and break it down into ways that actually make sense. So we're going to explain it to you like you're smart because you are, but not like you've already had a neuroscience degree.

Crystal 1:18

So basically, Sarah's going to bring the research side, and I'm going to be the person stopping her and saying, okay, but say that in normal people words.

Sarah 1:27

Yes, that is the goal because this topic has a lot of big words: Alzheimer's disease, dementia, maldognitive impairment, biomarkers, EEG, F V E P2 potential. And I know F V E P2 sounds like a robot from Star Wars, but I promise we're going to make it make sense. That is actually perfect because questions are a huge part of this episode. This is part one, where we're going to explain the basics. We're going to talk about what Alzheimer's disease is, what mild cognitive impairment means, and why early screening matters, what Dr. Aruda's research is looking at, and why his recent patent milestone is such a big deal. But part two is where we want you involved.

Crystal 2:12

For part two, we are hoping to sit down with Dr. Aruda and ask him questions from you and our listeners.

Sarah 2:18

So if you have ever had a question about Alzheimer's, dementia, memory loss, early testing, brain activity, caregivers, family history, or even what is normal forgetfulness versus something more serious, please send it in. No question is too basic.

Crystal 2:32

Seriously, sometimes the basic questions are the ones everybody wants answered, but nobody wants to be the person to ask it out loud.

Sarah 2:40

And that's one of the reasons we want to do this. Alzheimer's is one of those topics that can feel really scary. A lot of people hear the word and immediately think of someone they love: a parent, a grandparent, a spouse, an aunt, an uncle, and a family friend, maybe. And sometimes people avoid asking questions because they're afraid of the answer. Or because they do not want to sound like they don't know enough. Right. But this is one of those topics where asking questions matter because when we understand something better, it becomes a little less mysterious, still serious, but less hidden in the dark.

Crystal 3:14

And with something like memory loss, people need plain answers. Not answers that make them feel stupid, not answers that make them feel like they need a medical dictionary, just real explanations.

Sarah 3:24

And that's exactly what we're aiming for. So if you have a question you would want to ask Dr. Ruda, send it in. It can be something like What's the difference between dementia and Alzheimer's? Does mild cognitive impairment always become Alzheimer's? How do you know when forgetfulness is normal? What should families watch for? Can brain testing catch changes earlier? What does an EEG actually do? And can a brain test read your thoughts? Is there anything people can do to lower the risk? Or even what is one myth about Alzheimer's that you wish people would stop spreading?

Crystal 4:00

I already like that one because people say a lot of things about memory and aging that are not always true.

Sarah 4:07

They do. And in part two, our hope is to bring that question directly to Dr. Aruda and let him answer them with us. So this first episode is going to be a set the table type episode. We're going to explain what the disease is, what early warning signs can mean, and what this research is trying to measure. And I want to say this clearly at the beginning: this episode is educational. It is not medical advice. We are not diagnosing anyone. We're not saying one test can explain everything about a person's brain. If you or someone you love is having memory changes, that is something to talk about with a qualified medical professional.

Crystal 4:42

So we are here to explain, not diagnose.

Sarah 4:45

We are here to explain, to ask better questions and to make the science easier to understand. This topic is also personal for me in an academic way. I have had multiple classes with Dr. Aruda, and I may have future classes with him during my graduates program. I have also completed coursework connected with this area of research, so I wanted to be very clear and respectful about my role. I am not speaking for Dr. Aruda, I am not speaking for UWF, and I am not speaking for BioPac or any of the research team. I am connected to this as a student who has learned from him and studied around this topic, not an inventor, and I'm not as an owner of his research.

Crystal 5:23

Which actually makes this interesting from your side too, because you're not just reading a headline and going, oh, that sounds cool. You are actually seeing some of the classroom and research side of how complicated this kind of work can be.

Sarah 5:36

Yes, and this is why I wanted to cover it. Because when people see a headline about a patent or new research tool, they may not realize how much work happened before the headline. Research is slow. It is not one person waking up one morning with a perfect idea and suddenly everything works. It's years of testing, changing things, asking questions, getting things wrong, fixing methods, checking results, writing, publishing, reviewing, and continuing even when the process is super frustrating.

Crystal 6:07

So by the time the public hears about it, they're seeing the finished performance. They're not seeing every rehearsal, every mistake, every rewrite, every try it again.

Sarah 6:17

And that's a good way of putting it. And that is one of the reasons I want to give Dr. Aruda credit in this episode, not just for the science itself, but for the grit behind it. Because staying with the research question for years takes patience. It takes discipline and it takes the ability to keep going when progress is slow. And in a field like Alzheimer's research, progress matters even when it's not a cure, and even when it's not the final answer, even when it is one careful step forward.

Crystal 6:44

Because families need steps forward. They need hope, but they also need honest hope.

Sarah 6:50

Yes, honest hope is the perfect phrase. We are not going to sit here and act like Alzheimer's has been solved. It has not. But early screening research matters because time matters. Time to notice changes, time to ask questions, time to plan, time to involve the person while they can still speak for themselves. Time for families to understand what might be happening instead of feeling like they're guessing in the dark.

Crystal 7:14

And even if the answer is scary, sometimes not knowing is scarier too.

Sarah 7:18

Absolutely. So today we are going to start at the beginning. Before we talk about Dr. Aruda's research, before we talk about F V E P2, before we talk about EEG or biomarkers or patents, we need to understand the disease itself. We need to understand what Alzheimer's is. We need to understand what dementia is. And we need to understand what mild cognitive impairment means. And we need to understand why catching changes earlier could matter so much.

Crystal 7:46

And we're going to do it in normal words.

Sarah 7:49

Normal words, I guess. Big words are allowed, but only if we break them down. So if I say something like biomarker, I'm also going to say that means a body clue. If I say latency, I'm going to see that means how long it takes the brain to respond. And if I say cognitive, I'm going to say this means thinking. And if I say non-invasive, I'm going to say that means nothing has to be cut open or put inside the body.

Crystal 8:14

Thank you, because that is the kind of translation people need, and and me as well.

Sarah 8:20

I mean, that's the kind of translation I need sometimes too. Science can be beautiful, but it can also be locked behind language that makes people feel like they are not allowed in the room. In this episode, I want to open that door. So let's start with the big question most people have first. What is the difference between normal forgetfulness, dementia, and Alzheimer's disease? So let's start with things that I think makes people panic the fastest. Forgetfulness. Because almost everybody has that moment where they forget what they walked, why they walked into a room, or that they can't remember where they put their phone, or they're trying to tell a story, and suddenly the names they need just is gone.

Crystal 8:59

Yes. Or when you open your phone to do something and then suddenly you're staring at it, like, why am I here? That happens to so many people.

Sarah 9:07

And I think this is why this topic can feel scary, is because memory is such a normal part of everyday life that when it slips even a little, people sometimes jump straight to the worst case scenario. Like, oh my gosh, I forgot one word. Is this Alzheimer's? Right. And I want to say this clearly at the beginning again: forgetting something does not automatically mean Alzheimer's. It does not automatically mean dementia. It does not automatically mean something serious is happening. Memory is affected by so many things. Stress can affect memory, lack of sleep, anxiety, depression. ADHD can also affect memory, as well as grief. Hormones, especially. Medications can affect memory, and even being distracted can make your memory look worse than it really is.

Crystal 9:51

That's important because sometimes we act like memory is only about age, but really your brain can be overloaded.

Sarah 9:58

Yes. Think of your brain like a desk. If your desk is clear, you can find things pretty easy. But if your desk is covered in papers, cups, sticky nose, cords, snacks, unopened mail, and 17 things that you swore you were gonna deal with later, then even if the things you need is on the desk, it is harder to find. That is why what stress and overload can do to the memory. The memory might not be gone. It's just buried under too much mental clutter.

Crystal 10:24

And that makes sense. So normal forgetfulness is more like the brain being busy, tired, or distracted.

Sarah 10:31

A lot of the time, yes. Normal forgetfulness can look like misplacing your keys, forgetting the name of someone you met once, walking into a room and forgetting why, or taking just a little longer to remember a word. Those things can be frustrating, but them themselves are not automatically a sign of Alzheimer's.

Crystal 10:47

So when does it become more concerning?

Sarah 10:50

The word I want people to listen for is pattern. One memory slip is not the same thing as a pattern. A pattern means something is happening, it starts to get worse or it begins affecting somebody's daily life.

Crystal 11:01

So not just I forgot where my keys are, more like I keep forgetting important things and now it's causing problems.

Sarah 11:08

Yes. Concerning forgetfulness may look like asking the same question over and over in a short amount of time, forgetting important appointments again and again, getting lost in familiar places, struggling to follow in conversations, forgetting how to do tasks someone used to know well, or having a family member notice a real change.

Crystal 11:26

That sounds different than just being scattered.

Sarah 11:29

And it is different. Here is a simple way to think about it. Normal forgetfulness is misplacing your keys. Concerning forgetfulness is finding your keys and not understanding what they are for. Normal forgetfulness is forgetting someone's name for a minute. Concerning forgetfulness is not recognizing someone you know well. Normal forgetfulness is forgetting why you walked into the kitchen. And concerning forgetfulness is being in your own kitchen and feeling confused about where you are.

Crystal 11:56

That gives people a much clearer picture because people hear memory loss and put everything in the same bucket.

Sarah 12:02

Exactly. And it's not all memory problems that are the same. There's a huge difference between being distracted and being disoriented. Distracted means your attention is pulled away, and disoriented means that you're confused about where you are, what time it is, what is happening, or what you were supposed to do.

Crystal 12:18

So distracted is like, I forgot because I was thinking about 10 other things. Disoriented is like I generally do not understand what is going on.

Sarah 12:26

And that's one of the reasons it's important to talk to a medical provider if something feels different or concerning, because there can be many reasons someone's memory changes. Some are serious, some are treatable, and some are related to medications, infections, sleep problems, vitamin issues, depression, stress, or other health conditions. So the point is not to panic, the point is to pay attention. I like that.

Crystal 12:47

Do not panic, but don't ignore it either.

Sarah 12:50

Because sometimes people can go too far in one direction. They either panic over every tiny memory slip or they brush off major changes because they do not want to face what might be happening.

Crystal 13:00

And that makes sense because the idea of Alzheimer's is terrifying for people. So I can see someone saying, oh, that is just aging. Even when the family knows it feels bigger than that.

Sarah 13:11

Absolutely. And aging can come with some changes. As people get older, they may process information more slowly. They may need more reminders, they may take longer to learn something new, but aging does not usually mean a person suddenly cannot manage familiar parts of their life. It does not usually mean that they're repeatedly getting lost in places they know, and it does not usually mean they cannot remember major recent events or becoming confused in ways that worry people around them.

Crystal 13:36

So it's not just the forgetfulness itself, it's the level of change.

Sarah 13:40

Yes, the level of change and how much it affects daily life. For example, if someone forgets to pay one bill once because life got busy, that can happen. But if someone who's always handled the bills well suddenly cannot keep track of money, misses payments over and over, pays the same bill multiple times, or gets confused by basic tasks they used to manage easily, that's gonna be a little bit more concerning.

Crystal 14:02

That would be one of those moments where the family might say, This does not feel like them.

Sarah 14:06

And that phrase matters because this does not feel like them. Families often notice personality or behavior changes before they have language for it. Maybe someone becomes more withdrawn, they get more irritated easily, they're suspicious or anxious, and maybe they stop doing things they used to enjoy because they it becomes harder to keep up with.

Crystal 14:25

That part is sad because people might think the person is just being difficult.

Sarah 14:29

Yes, and that's why education matters. Sometimes a person is not trying to be difficult. They might be scared, they might be embarrassed, they might know something feels off, but they don't know how to explain it, or they may not fully realize how much things have changed.

Crystal 14:42

And that would make it harder for the family too, because you're trying to figure out are they being stubborn? Are they depressed? Are they overwhelmed? Is something happening in their brain?

Sarah 14:52

Right. And that's why we have to be careful. You cannot diagnose someone from the outside. We cannot say, oh, they forgot something, so they must have Alzheimer's. But we also should not ignore patterns just because the conversation is uncomfortable.

Crystal 15:04

So, what would be a good way to bring it up? Because I feel like a lot of people would not know how to say, hey, I'm worried about your memory, without sounding rude or scary.

Sarah 15:14

That's such a good question. I think this is one we should say for Dr. Aruda in part two. But in general, I think the tone matters. Instead of saying something is wrong with you, it may be better to say something like, I have noticed you seem a little bit more stressed or forgetful lately. I care about you. Would you be open to talking to a doctor to maybe just check it in?

Crystal 15:32

And that feels gentler.

Sarah 15:34

Yes. Because people deserve dignity. Memory concerns can feel personal. It is not like telling someone they have a cough. You are talking about their mind, their independence, their identity, and sometimes their fear of losing control. So how can how we talk about that matters.

Crystal 15:50

And that is such a big part of this because when people talk about Alzheimer's, they talk about the disease, but they don't always talk about the shame people feel when they start forgetting things.

Sarah 16:00

And the shame can make people hide symptoms. Someone might cover it up with jokes, they might blame someone else, they might avoid social situations, and they might get angry when corrected. Not because they're trying to be mean, but because it's scary to feel like your own brain is not doing what it used to.

Crystal 16:15

And that makes me think of how people sometimes laugh something off and say, I'm just getting old. But maybe underneath that, they're actually afraid.

Sarah 16:23

That can happen. And to be fair, sometimes it really is just a normal slip. But if there is a pattern, it deserves care, not judgment, not panic, care.

Crystal 16:35

So the big message here is one forgotten word does not equal Alzheimer's, but repeated changes that affect daily life should not be ignored.

Sarah 16:44

Yes, that is the balance. And this is why early screening matters so much because families are often stuck in this gray area. They know something is different, but they do not know what it means. They may not know if it's stress, depression, aging, medication, grief, dementia, or something else. Early screening and good medical evaluation can help start sorting that out.

Crystal 17:05

It is like turning the lights on in a room. Even if you do not have every answer yet, at least you can see where you are standing.

Sarah 17:12

And that brings us to the next big word people hear all the time, but they may not understand clearly dementia. Because dementia and Alzheimer's are often used like they mean the same thing, but they are not exactly the same.

Crystal 17:22

So next we'll need to explain the umbrella.

Sarah 17:25

Yes. Dementia is the umbrella. Alzheimer's is one thing under the umbrella. And once that clicks, the rest of this conversation becomes much easier to understand. So before we can really talk about Alzheimer's disease, we need to talk about dementia because people use those words together all the time. Dementia, Alzheimer's, memory loss, cognitive decline. And when people hear them enough times in the same sentence, it starts to feel like they all mean the same thing.

Crystal 17:53

Which is where people get confused because I feel like a lot of people say they have dementia and they have Alzheimer's, like those are automatically the same diagnosis.

Sarah 18:01

They are connected, but they are not the same thing. The easiest way to explain this is dementia is an umbrella word. Alzheimer's disease is one condition that under that umbrella.

Crystal 18:12

So dementia is the big category, and Alzheimer's is one specific type.

Sarah 18:17

Yes. Think of it like a fruit. Fruit is the big category. Apples, bananas, oranges, grapes are specific types of fruit. Demention is the big category, Alzheimer's, the one specific cause of dementia symptoms.

Crystal 18:29

That is way easier. So if someone says dementia, that does not automatically tell us what caused it.

Sarah 18:35

Right. Dementia is not one single disease by itself. It is a word used to describe a group of symptoms that affect the brain. Those symptoms can include memory problems, trouble thinking clearly, trouble using language, poor judgment, confusion, personality changes, or difficulty doing everyday tasks.

Crystal 18:52

So dementia is more like describing what is happening to the person, not always explaining why it's happening.

Sarah 18:58

Dementia describes a problem, the person's thinking and daily functioning are being affected. But then doctors still have to ask, what is causing this? And Alzheimer's disease is one possible cause. It is the most common cause people talk about, but is not the only one.

Crystal 19:13

What are some of the other causes?

Sarah 19:15

There are different types of dementia. Some are related to blood flow to the brain, some are related to protein changes in the brain, and some can be connected to Parkinson's disease. Some can come from repeated brain injuries, and sometimes people can have more than one thing happening at the same time. So the brain is not simple. Not even a little. This is why we have to be careful when we talk about memory problems, because two people might both look forgetful on the outside, but what is happening on the inside of the brain could be very different.

Crystal 19:45

That makes sense. Like two cars could both be making a weird noise, but one might need old and the other might have an engine problem.

Sarah 19:53

Symptom is the car sounds wrong, but the cause could be different. With dementia, the symptoms might be memory problems or confusion. But the cause could be Alzheimer's, a blood flow problem, a medication issue, another brain disease, or something else.

Crystal 20:06

That also explains why one test cannot magically answer everything.

Sarah 20:11

Yes, and that's such an important point. A good evaluation usually looks at a bigger picture. Doctors may look at medical history, symptoms, family observation, memory testing, blood work, brain imaging, medication, mood, sleep, and sometimes other kinds of testing. Because the goal is not to just say memory problems, the goal is to understand what kind of memory problems, how serious it is, and what might be causing it and what can be done next.

Crystal 20:37

So when people say just test me for Alzheimer's, it's not always that simple.

Sarah 20:44

Right. And that does not mean testing is useless. Testing is very important. It just means that the brain is complicated. So doctors usually need more than one clue.

Crystal 20:54

And that brings us back to that word you said earlier: biomarker.

Sarah 20:58

Yes. We need to get deeper into that later. But for now, remember that a biomarker is a body clue. It is something that researchers or doctors can measure that may tell them something about what is happening inside the body. But even a good clue is still one part of a bigger picture.

Crystal 21:17

Like if you're trying to solve a mystery, you do not solve the whole thing with one footprint. But the footprint still matters.

Sarah 21:24

Yes. And dementia is one of those mysteries where the clue matters a lot because the earlier someone can understand what is happening, the more time they may have to plan, get support, and make decisions.

Crystal 21:37

And I think this is where people get scared though, because when they hear dementia, they imagine the worst possible version right away.

Sarah 21:44

They do. And that fear makes sense. Dementia can be heartbreaking. It can change relationships, it can change someone's independence. It can change how families communicate, how they plan, and how they care for each other. But fear can also make people avoid learning about it. And avoiding does not protect anyone.

Crystal 22:02

It just keeps everyone in the dark longer.

Sarah 22:05

Yes. So part of what we are doing in this episode is taking words that feel terrifying and explaining them clearly because a word feels less powerful when you understand what it means.

Crystal 22:15

So dementia means the brain is having problems with thinking and daily life. Alzheimer's, it's one disease that can cause that. Correct.

Sarah 22:24

And another important piece of that, dementia is not just being old, it's a harmful myth. Aging can come with some memory changes, but dementia is not a normal part of aging.

Crystal 22:35

And that feels important to say more than once. Because I've heard people say, well, they're just old when something bigger might be going on.

Sarah 22:44

Yes. And sometimes people dismiss symptoms because they think memory loss is just what happens when you age. But dementia involves changes that interfere with daily life. It's not just taking longer to remember a name, it's not just needing a reminder. It's a bigger pattern of thinking problems that can affect independence, safety, communication, and routine.

Crystal 23:02

So if someone older forgets something here and there, that can be normal. But if they cannot manage their normal life the way they used to, that is different.

Sarah 23:11

And I want to be careful here because we are not trying to make people suspicious of every older adult in their life. We're not saying watch everyone like detectives. We're saying patterns matter, changes matter, and daily functioning matters. So, and if you feel something is concerning, it is worth getting checked.

Crystal 23:30

I like that because it keeps the fear down. It's not panic, it's just pay attention.

Sarah 23:36

It's a theme, and everybody likes a good theme, right? Do not panic, do not ignore, pay attention, ask questions and get support. So, where does Alzheimer's fit in to all of this? Alzheimer's is one of the diseases that can lead to dementia. It usually starts slowly. At first, the changes may be small, someone may forget recent conversations, they may repeat themselves, they may misplace items more often, and they may struggle with planning or organizes. They may also seem less like themselves. Over time, the disease can affect more parts of thinking and daily life.

Crystal 24:09

So Alzheimer's is the thing happening in the brain, and dementia is a set of symptoms that can show up because of it.

Sarah 24:17

Yes. That's a clean way to say it. Alzheimer's is the disease process. Dementia is the level of symptoms that can happen when the disease affects daily life.

Crystal 24:27

Okay, so let me try to say it back. Dementia is not one disease, it is a word for serious thinking and memory problems that affect daily life. Alzheimer's is one disease that can cause dementia. And mild cognitive impairment is something different that can happen before dementia, but does not always turn into dementia.

Sarah 24:48

That is it. You just gave the whole map. We're done. I'm just kidding. Look at me go. Woo! Science. Very proud. And that map is going to help us as we move forward because Dr. Ru's research is not just about people who already have severe dementia. A major part of why this matters is early detection. That means finding signs earlier when someone may be in the mild cognitive impairment stage before the symptoms become more severe.

Crystal 25:13

So the goal is not just to identify the fire after the whole house is burning, it's trying to notice smoke earlier.

Sarah 25:20

Yes, and that's a very strong analogy. And it fits. Early screening is about noticing smoke. It does not mean you know everything yet. It does not mean you know exactly how fast things will change, but it tells you something may be happening. Let's look closer.

Crystal 25:34

And that could give families more time.

Sarah 25:37

More time to talk, more time to plan, understand, involve doctors, involve the person while they can still share what they want.

Crystal 25:45

That part matters so much because once someone loses the ability to make decisions, families are left trying to guess what they would have wanted.

Sarah 25:53

And that's one of the hardest parts. And it is why it's important to have the early intervention, and it can be powerful, not perfect, not painless, but powerful.

Crystal 26:03

So now that we know dementia is the umbrella and Alzheimer's is one cause under the umbrella, we need to talk about Alzheimer's more directly.

Sarah 26:13

Now that we have explained dementia as the umbrella, and I know we're repetitive, but we're trying to teach you, yeah. Let's talk about Alzheimer's disease more directly. Alzheimer's is a brain disease, and I know it sounds simple, but I want to start there because people sometimes talk about Alzheimer's like it's just being forgetful or getting old. It's not. Alzheimer's is not just normal aging, and it's not just someone being scattered, and it's not just having bad memory days. It's a disease that slowly changes how the brain works.

Crystal 26:41

So when people say, oh, they're just getting old, that can actually be dismissive.

Sarah 26:45

Yes, it can be, because aging can make people a little slower with certain things. Maybe it takes longer to remember a name. Maybe it does take needing more reminders. Learning a brand new phone or a computer is annoying and harder than it used to be. And it can happen with aging. But Alzheimer's is different because it's slowly damaging parts of the brains that helps with memory, thinking, language, judgment, and daily life.

Crystal 27:08

So it's not just grandma forgot where she put her glasses. It's more like the brain is having trouble doing jobs it used to do.

Sarah 27:15

Yes, the brain has jobs. It stores memories, it helps us understand where we are, it helps us recognize people, and it helps us use words, it helps us make decisions, it helps us follow steps like cooking a meal, paying a bill, driving somewhere familiar, or remembering what happened earlier in the day. With Alzheimer's, those brain jobs become harder over time.

Crystal 27:34

And that is why people can seem like they're changing as a person.

Sarah 27:38

Yes, because the brain is tied so much to who we are, our memories, personality, routines, emotions, our ability to make choices. So when a disease affects the brain, it can affect more than just memory. It can affect mood, patience, confidence. It can also affect how someone responds to family, and it can also affect how safe they are doing things they used to do automatically.

Crystal 27:59

And that part feels important because I think people assume Alzheimer's is one forgetting names or forgetting where things are.

Sarah 28:06

A lot of people do. Memory is often the thing people notice first, especially recent memory. Recent memory means things that just happened, like what someone ate for breakfast, what they've talked about earlier, whether they already took their medication, whether they already asked the same question.

Crystal 28:21

So older memories might still be there, but newer memories are harder to hold on to.

Sarah 28:26

That can happen. Some people with Alzheimer's may remember things from childhood very clearly, but forget a conversation from 10 minutes ago. That can confuse families because they may think, well, they remembered something from 50 years ago, so their memory must be fine. But memory is not one big storage box where everything disappears at the same time. Different types of memories can be affected differently.

Crystal 28:46

And that makes sense. Like a bookshelf where some shelves are still full, but other shelves are falling apart.

Sarah 28:53

And with Alzheimer's, the early problems often show up with forming or keeping newer memories. So the person may repeat the same story, they may ask the same questions, they may forget plans, and they may misplace things in unusual places. They may rely more on notes, calendars, or family members. And again, one slip does not mean Alzheimer's. We are talking about patterns. The pattern matters. Another word people may hear with Alzheimer's is progressive. Progressive means it's getting worse over time. It does not mean every single day is worse than the day before. People can have good days and have bad days. But when doctors say Alzheimer's is progressive, they mean that the disease tends to move forward over time.

Crystal 29:32

So it's not like the cold where you get sick, rest, and then your body clears it out.

unknown 29:37

No.

Sarah 29:37

Alzheimer's is not like that. It is a long-term disease that slowly affects the brain more and more. That is part of why early detection matters, because by the time someone's clearly struggling in daily life, changes may have been building in the brain for a very long time.

Crystal 29:53

And that is scary.

Sarah 29:55

It is. And I do not want to soften this so much that we are pretending it's not serious. Alzheimer's is serious. It is very heartbreaking for families. But understanding it can help remove some of those mysteries. And when we remove some of the mystery, people may feel more prepared to ask for help.

Crystal 30:10

So what is happening in the brain? And say it like I'm not a scientist.

unknown 30:15

Okay.

Sarah 30:17

Think of the brain like a city. In a city, you have roads, traffic lights, power lines, buildings, and people sending messages all day long. The brain similar. Brain cells send messages to each other so we can remember, think, speak, move, feel, and make decisions. In Alzheimer's disease, parts of that city starts to break down. Some roads get blocked, some power lines stop working, some messages do not get delivered the way they should. And at first, the city might find ways around the damage. Traffic can take different roads, people can use reminders, family can help fill in the blanks. But as more roads and power lines are damaged, the city has a harder time functioning.

Crystal 30:55

And that makes it easier to picture. At first, there's detours, but eventually there's too many detours.

Sarah 31:02

Yes. And that's why when daily life becomes more affected, someone may not just forget one thing. They may struggle with cooking safely. They may forget how to get home. They may leave things on the stove, have trouble managing money, can get confused by steps that used to be so easy, may not understand why or what day it is or why something is happening.

Crystal 31:23

And families are watching this person that they love slowly struggle with things that used to be normal for them.

Sarah 31:30

And that's one of the most painful parts because for the person experiencing it, it can be frustrating and frightening. And for the family, it can feel like grief while the person is still physically there.

Crystal 31:39

That is such a hard type of grief because you're slowly losing pieces.

Sarah 31:44

And I think that's why conversations about Alzheimer's needs both science and compassion. We need research, we need screening, and we need brain science. But we also need to remember that behind every study, every test, every diagnosis, there are real people with real families.

Crystal 31:58

That is why I like this episode. It's not just here's a disease, it's also here is why research matters.

Sarah 32:05

Right. Because if we understand that Alzheimer's may start changing the brain before the symptoms are obvious, then we can understand why researchers are trying to find earlier clues. This is where early screening comes in.

Crystal 32:16

So instead of waiting until someone is really struggling, researchers are asking, can we notice signs sooner?

Sarah 32:23

Yes. And that is the heart of it. Can we find clues before the disease has taken away too much? Can we notice changes why the person still has more independence? And can we give families more time? Can we help doctors make better decisions earlier?

Crystal 32:37

And that connects to Dr. Aruda's research because he's looking at how the brain responds to flashes of light.

Sarah 32:44

Yes, and we are building towards that. But before we get to that flash response, we need to understand one more important stage: mild cognitive impairment. Because mild cognitive impairment or MCI can be an in-between place. It's not normal forgetfulness, but it's not full dementia either.

Crystal 33:01

So it's like the warning light stage we mentioned earlier?

Sarah 33:05

Yes, MCI can be like a warning light. It tells us something may be changing. We should pay closer attention. And when the memory part is most affected, we may hear the phrase and when the memory part is most affected, we may hear the phrase amnestic mild cognitive impairment. That sounds big, but just means memory-related mild thinking problems.

Crystal 33:29

Big word, simple meaning.

Sarah 33:31

Big word, simple meaning. And that is where we are going next. Because if Alzheimer is the disease that can eventually cause dementia, mild cognitive impairment may be one of the earlier places where changes start to show up. Not always, and not for everyone, but often enough that researchers care about finding better ways to screen for it earlier. So now we are at a really important part of this episode. Mild cognitive impairment. You may also hear people call it MCI. And I know that phrase sounds clinical, so let's break it down piece by piece. Mild means not severe, cognitive means thinking. Impairment means something is not working as well as expected. And so mild cognitive impairment means a person is having thinking or memory problems, but not severe enough to be called dementia. So MCI is not dementia. Right. MCI is not the same thing as dementia. That is one of the most important things to understand. With dementia, the person's thinking problems are affecting daily life in a bigger way. With MCI, the person may have noticeable changes, but they can still do many everyday lives things on their own.

Crystal 34:37

So they might still be cooking, driving, paying bills, going places, having conversations, and doing normal life stuff.

Sarah 34:44

Many people with MCI are still independent. They may still live alone, they may still work, they may still manage parts of their routine, but something has changed enough that early they notice it and their family notices it or testing shows it.

Crystal 34:59

So it's like something is off, but the whole system has not collapsed.

Sarah 35:03

That's a good way of saying it. MCI is not everything is fine, but it's also not the person cannot function. It is more like an in-between stage, not normal aging, not dementia. That sounds like warning lights on a car again. Yes. MCI is a lot like morning lights. The car still drives. You can still go to the store, you can still go to work, you can pick someone up, but the warning light is telling you something might need to be checked. It does not tell you the whole problem itself, and it does not mean that the car is about to explode, but it does mean that you shouldn't ignore it forever. To put a little sticker over it.

Crystal 35:40

Yeah, just a little bit. That's such a good way to explain it because the warning lights are not always the end of the world, but they are there for a reason. Right.

Sarah 35:48

And that is how I want people to think of MCI. It does not always mean Alzheimer's and it does not always turn into dementia, but it can be a sign that the brain is changing in ways that we want to look at. So someone can have MCI and not end up with Alzheimer's. Yes. That is really important. MCI can happen for different reasons. Sometimes it may be connected to Alzheimer's disease. Sometimes they may be related to other health issues. Sometimes memory can be affected by depression, sleep problems, medications, stress, medications, or other brain changes, like we've mentioned in the past. That is why evaluations matter. And we do not want to jump straight to the scariest answer. But we also do not want to dismiss real changes.

Crystal 36:28

So again, the message is do not panic, but do not ignore it.

Sarah 36:33

Yes. That is the balance. Do not panic. Do not ignore. Ask questions. And get checked. Watch the pattern.

Crystal 36:41

What would MCI look like then in real life? Because I think people need examples.

Sarah 36:47

A person with MCI might forget appointments more often than they used to. They may repeat questions, they might lose track of conversations, and they might forget recent events. They might have trouble following a recipe they used to make easily. They might struggle more with planning or organizing. They may rely more on notes, calendars, alarms, or family members. But they're still able to live their life? Often, yes. That is the difference. They may need more support, more reminders, or more systems, but they are not necessarily unable to function. With dementia, daily life becomes more deeply affected. With MCI, there is concern, but there is still a lot of ability there.

Crystal 37:25

That feels like a sensitive place for families because it's enough to worry you, but maybe not enough that everyone agrees something is wrong.

Sarah 37:33

That is one of the hardest parts. MCI can sit in that gray area. One family member may say, I think something is changing. Another family member may say, no, they're just getting older. The person themselves may say, I am fine, or they may notice it and feel embarrassed.

Crystal 37:48

And that would be so frustrating because you're trying to figure out whether you're overreacting or not paying enough attention.

Sarah 37:55

Yes, and this is why having better screening tools matter, because families should not have to rely only on guessing. Good screening can help separate normal aging from changes that deserve a closer look. It still does not mean one test answers everything, but it can help point people in the right direction.

Crystal 38:11

So when we say screening, we do not mean here is your whole diagnosis in one second.

Sarah 38:17

No. Screening is more like a first check. Think of it like when a teacher gives a quick reading check to see who might be, who might need extra help. That quick check is not the entire story of the student. It does not tell you everything about them, but it can show you who may need to look, you may need to look closer at.

Crystal 38:35

So earlier screening for memory problems is like saying, let's see if there are signs we should look deeper into.

Sarah 38:41

Yes, that is the point. And with MCI, early screening can be especially important because it may give people more time, more time to meet with doctors, more time to track symptoms, to make healthy changes, talk with family, plan for the future, or for the person to be a part of the decisions.

Crystal 39:00

That last part matters because if you wait until someone is much further along, they may not be able to explain what they want anymore.

Sarah 39:07

And that is one of the biggest reasons early detection matters. It's not because of the medical side. It's about dignity. It's about choice and it's about giving people the chance to participate in their own care.

Crystal 39:19

And that makes it feel less like a scary label and more like information.

Sarah 39:23

That is how I see it. A diagnosis or a screening result can be scary, but information can also give people power. Not control over everything, not guarantee, but power to ask questions and make plans.

Crystal 39:34

What about the word amnestic? Because you mentioned that earlier, and that is one of those words where my brain just goes, absolutely not.

Sarah 39:42

Fair. Amnastic sounds intimidating, but it just means memory related. So when we say amnestic mild cognitive impairment or MCI or AMCI, we are talking about a type of MCI where the memory is the main problem.

Crystal 39:57

So AMCI means memory-related mild thinking problems.

Sarah 40:03

Yeah. That's the simple version. Amnastic means memory related. Mild cognitive impairment means mild thinking problems. Put it together in a MCI means a memory part of thinking is showing problems, but the person is not at the level of dementia. So again, big word, simple meaning. Big word, simple meanings. AMCI matters because it often studied as a possible early write for Alzheimer's disease. So if someone has AMCI, researchers pay attention because some people with AMCI later develop Alzheimer's dementia. But not everyone does. And that is a huge distinction because if someone hears risk, they might think destiny. Yes, and a risk is not destiny. Risk means pay attention, risk means monitor, risk means ask questions. Risk means do not ignore it, but it does not mean the future is already written.

Crystal 41:06

And that feels like something we should ask Dr. Aruda in part two. Like, what should people understand about risk without spiraling?

Sarah 41:14

Right? I love that question because that is one of the hardest parts of health information. You want people to take it seriously without making them feel doomed. And there is such a fine line between awareness and fear. There is. And Alzheimer's is already a fear-heavy topic. So when we talk about MCI or a MCI, we need to be able to be careful with our language. We should not say the person is definitely going to get Alzheimer's. We should say this may be a sign that it deserves monitoring and further evaluation. And that feels more responsible. Yes, and it's more accurate. Science is often about probabilities, not fortune telling. Researchers are asking what clues might help us understand who's at risk, what tools might help us notice changes earlier, and what patterns show up before the disease becomes more obvious.

Crystal 41:57

So MCI is one of those places where researchers are looking closely because it may be an earlier window.

Sarah 42:04

And that word window is important. A window is an opening. If we can notice changes earlier, there may be a better window for planning, support, monitoring, and future treatment.

Crystal 42:14

And that makes me think of families again, because sometimes people do not get help until everything is already in crisis.

Sarah 42:20

That happens a lot. Families may wait until there is a safety issue, a wandering incident, a medication mistake, financial problems, a car accident, a stove left on, a fall, a moment where everyone suddenly realizes we cannot keep pretending this is fine.

Crystal 42:36

And by then everyone is scared and exhausted.

Sarah 42:39

Yes. Early screening cannot remove all of the pain, but it may help people avoid being blindsided and it may help turn a crisis into a plan.

Crystal 42:47

And I like that. A crisis into a plan.

Sarah 42:50

That is the hope. And this is where Dr. Aruto's research starts to make more sense. Because if MCI is one of the early warning stages, then researchers need tools that may help catch early warning signs. Not tools that wait until the disease is obvious, tools that look for clues earlier.

Crystal 43:05

And his research is looking at one possible clue in the brain's response to light.

Sarah 43:10

Yes, but before we explain F VEPP2, we need to explain one more big idea: biomarkers. Because Fve E P2 is being studied as a possible biomarker. And biomarker is one of those science words that sounds way more complicated than it needs to be.

Crystal 43:26

And let me guess, it means body clue.

Sarah 43:29

Yes, you are learning.

Crystal 43:31

I'm basically a lab coat now.

Sarah 43:33

Basically, a biomarker is a body clue. And once we understand that, FVEP2 becomes much easier to understand. Because the whole question becomes can the way the brain responds to flashes of light give researchers a useful clue about early memory related brain changes? So next we are going from warning lights to body clues. Exactly. We have the warning lights, which is MCI. Now we need to talk about the clues researchers. Use to understand what the morning light might mean. So now we are at the word biomarker. And this is one of those words that sounds like it belongs in a science article, but the idea is actually pretty simple. A biomarker is a body clue. That is it. A body clue. For the millionth time.

Crystal 44:19

I love when the scary word gets taken down immediately. Same.

Sarah 44:23

Because biomarker sounds huge, but it really just means something in the body that doctors or researchers can measure to learn more about what might be happening.

Crystal 44:31

So give me examples because I feel like people probably know biomarkers already, but they do not call them that.

Sarah 44:38

Exactly. Blood pressure can be a biomarker. It gives information about the heart health. Blood sugar can be a biomarker. It gives information about how the body handles sugar, which matters for diabetes. A fever can be a clue that the body might be fighting an infection. Cholesterol can be a clue about heart and blood vessel health. So when we say biomarker, we're not talking about some mere serious sci-fi thing. We're talking about something measurable that can give us a clue.

Crystal 45:04

So biomarker is basically the body leaving breadcrumbs.

Sarah 45:07

Yes. And the doctors or researchers is trying to read the breadcrumbs.

Crystal 45:13

And that makes so much more sense. So with Alzheimer's or mild cognitive impairment, researchers are looking for clues that may show something is changing in the brain.

Sarah 45:22

With Alzheimer's, the brain may begin changing before the symptoms are obvious. So researchers want to know: are there clues that we can measure earlier, before daily life is deeply affected, before family is in crisis, and before someone loses more independence?

Crystal 45:36

So the goal is to catch the smoke before the whole fire.

Sarah 45:40

That has been one of our best analogies for this episode. A biomarker may help show smoke. It does not always tell you the whole story and it does not always tell you exactly what will happen next. But it can say something may be happening here. We should look closer.

Crystal 45:54

So a biomarker is not a diagnosis all by itself?

Sarah 45:58

Most of the time, no. And that is really important. A biomarker is usually one piece of a bigger puzzle. Think about it like a detective case. If a detective finds one footprint, that footprint matters. It might tell them someone was there, it might tell them the size of the shoe, and it might tell them which direction someone walked. But one footprint does not automatically solve an entire case.

Crystal 46:17

So for the brain, one clue does not explain the whole person.

Sarah 46:21

Exactly. A person is not one test result. That matters so much in healthcare and especially in brain health. Someone's memory, mood, sleep, stress, medication, medical history, family observations, daily functioning, and test results all matter. A biomarker can be helpful, but it should not erase the rest of the person.

Crystal 46:40

And that feels important because people hear test and think that's gonna give them the perfect answer.

Sarah 46:45

Right? And I get why people want that. When someone something is scary, we want certainty. We want clear yes or no. We want to say this is exactly what's happening, and this is exactly what will happen next. But the brain does not always work that clearly and cleanly.

Crystal 47:00

That brain loves to make everything complicated. It really does.

Sarah 47:03

So when research talks about biomarkers for Alzheimer's or mild cognitive impairment, they are usually talking about clues that may help with early detection, better understanding, or better predictions. But the clue still has to be studied carefully. Researchers have to ask: is this accurate? Does this work for many people? Does it work for the same across different ages? And does it work across different health backgrounds? Can it tell the difference between Alzheimer's and other causes of memory problems? Can it be used safely? Can it be used affordably? And can regular clinics use it or only big research centers?

Crystal 47:38

And that's a lot more complicated than just we found a clue.

Sarah 47:42

Yes, finding a clue is only the beginning. Then you have to prove the clue actually helps.

Crystal 47:46

And that makes me think about how people can get excited by headlines. Like new tests can detect Alzheimer's early, and then everyone thinks it's ready tomorrow.

Sarah 47:56

And that's why we have to be careful with how we talk about Dr. Ruda's research too. This is exciting. It matters, it's a real step forward. But we are not going to say this solves Alzheimer's because that would not be accurate.

Crystal 48:08

So we are giving it praise without it turning into a miracle cure.

Sarah 48:12

Yes, progress does not have to be exaggerated to matter. A step forward is still a step forward. And in Alzheimer's research, a step forward matters because family needs better tools, they need better screening, and they need earlier information, need more options, and need doctors and researchers to keep pushing the field forward.

Crystal 48:28

And I think that is such a good point. Sometimes people hear it's not a cure and think that means it's not important, but that is not true.

Sarah 48:35

Not true at all. A cure is not the only thing that matters. Early detection matters, better screening, planning, and research tools matter. Better ways to track disease progression matters, better ways to choose who may need more testing matters, and all of this matters.

Crystal 48:50

Because every big medical breakthrough is usually built out of smaller steps.

Sarah 48:54

Science is a staircase, not an elevator. Most of the time you do not jump straight to the top. You climb one step, then another, then another. And sometimes you have to step backwards because something did not work. And then you adjust the climb again.

Crystal 49:07

And that is where the grit comes in.

Sarah 49:09

Yes. And that's the part where I want to keep coming back to the human part of research. People see the final headline. They do not see the years behind it. They do not see the students, the participants, the rejected ideas, the rewritten methods, the studies that did not answer the questions the way researchers had hoped, or the constant need to refine and try again.

Crystal 49:29

And with brain research, I imagine it's even harder because you are studying something we still do not fully understand.

Sarah 49:36

Absolutely. The brain is not looking at a broken bone on an X-ray and saying, this is where the break is at. Memory attention processing, brain chemicals, brain raves, behavior, symptoms, family reports, all of it can overlap. So research looks for patterns. They look for clues and they look for ways to measure something that may be happening before it is obvious on the outside.

Crystal 49:56

So this is the episode Dr. Aruda's research is looking at a possible clue in how the brain responds to light.

Sarah 50:04

And this is the easiest way to say it. Research is asking whether a certain brain response after flashes of light may provide useful information about early memory-related brain changes.

Crystal 50:14

And then that brain response is the F V E P P2.

Sarah 50:19

Yes. We are getting there. But before we explain F V E P2, we need to explain the tool that records the brain's response. That tool is called an EEG. Another big word. Right. It is. EEG stands for electroacegram. And that is one of those words that looks like someone dropped the alphabet. Absolutely not. But the meaning is simple. An EEG records brain activity. It does not read your thoughts. It does not control your brain. And it does not tell someone your secrets. Well, that's good to know. Maybe it records electrical activity from the brain using sensors on the scalp. So it's more like listening to the brain, not reading the mind. Exactly. And that distinction matters because people have a lot of misconception about brain tests. Sometimes they hear electrodes or brain activity and they think movies where someone is strapped to the machine and the machine knows everything they're thinking. This is not what we are talking about.

Crystal 51:17

So next we need to explain EEG in a way that does not make it sound like a villain's laboratory.

Sarah 51:24

No villain laboratory, just the brain activity sensors and a way to measure how quickly the brain responds to something simple like flashes of light.

Crystal 51:32

So if we have the morning light, which is the MCI, we have the body clue, which is the biomarker. Now we need the tool that helps find the clue. And that tool is the EEG. I think the body clue explanation helps a lot because biomarker sounds like something only a doctor or a researcher would understand. But when you say a blood pressure, blood sugar, fever, cholesterol, people already know what that means.

Sarah 51:57

Most people already understand the idea. They just may not know the science word for it. And if you go to the doctor, they can check your blood pressure, they are looking for a clue. And if you they check your temperature, they are looking for another clue. And they order blood work and they just keep looking for clues. You know, your body is giving information all the time. The question is whether we know how to measure it and what the measurement actually means.

Crystal 52:20

And that last part feels important because just because you can measure something doesn't automatically mean you know what it means.

Sarah 52:26

And that's a huge part of research. A measurement is only useful if it tells us something meaningful. For example, imagine your car is making a beeping sound. The beep matters, but you still need to know what kind of beep it is. Is it telling your seatbelt is off? Is the door open? Gas low? Engine overheating? The beep is a clue, but it has to be understood correctly.

Crystal 52:46

So a biomarker is like the beep. It tells you, hey, pay attention, but you still need to figure out what it's pointing to.

Sarah 52:53

Right. And with Alzheimer's and malocognitive impairment, that is where things get complicated. Because the brain is not giving us one simple beep. It's giving us a lot of small signals, and researchers are trying to figure out which signals are meaningful.

Crystal 53:06

And that makes brain research sound like trying to hear one instrument in the middle of a full orchestra.

Sarah 53:12

Right. That's a perfect analogy. The brain has so much happening at once. Memory, attention, vision, language, emotion, sleep, stress, medical effects, normal aging, disease changes, all of these things can affect how someone thinks and behaves. So researchers asking, is there a signal we can measure that gives us useful information about early Alzheimer's-related changes? And that is where Dr. Aruda's work comes in. Dr. Aruda's research is looking at whether the brain's response to flashes of lights can be one of those useful signals. Not the only signal, not the whole answer, but a possible clue. And that is why this is so interesting. Because compared to some other ways of looking for Alzheimer's-related changes, this kind of test could be much more accessible one day.

Crystal 53:53

And when you say accessible, you mean easier for people to actually get?

Sarah 53:57

Yes, accessible means easier to reach, easier to use, or less difficult for people to access. Some brain tests and medical tests can be expensive. Some require special machines, some are invasive. And invasive means something has to go inside of the body.

Crystal 54:11

Oh, like a needle or spinal tap.

Sarah 54:14

Exactly. And to be clear, those tests can be very important. We are not saying they're bad, but if researchers can develop a tool that is non-invasive, lower cost, and easier to use, that could be a big deal for early screening.

Crystal 54:26

Yeah, non-invasive means nothing has to go inside the body.

Sarah 54:29

Yes, non-invasive means no cutting, no surgery, and nothing being inserted into the body. So if you can get useful brain information from sensors on the scalp and flashes of light, that people that could be a much easier experience for many people.

Crystal 54:43

I can imagine that would feel less scary because if someone already feels anxious about memory loss, a less intimidating test could make a difference.

Sarah 54:51

Absolutely. And that matters because fear can keep people from getting checked. If a person thinks I do not want a scary test or I do not want to know, or I don't want to be embarrassed, they may delay seeking help. So the more approachable early screening can become, the more likely people may be to ask questions earlier.

Crystal 55:09

And earlier is the whole point.

Sarah 55:11

Earlier does not mean easy. Earlier does not mean painless, and earlier does not mean everything is solved. But earlier can mean more time. And time is one of the most valuable things in diseases like Alzheimer's.

Crystal 55:23

Time to plan, time to talk, to get support, to make decisions.

Sarah 55:28

And time to get involved in the person while they can still speak for themselves. And this is why I want listeners to understand that screening is not about labeling someone, it's taking away their independence. That is a fear people many many people may have. They may think if I get a test and something shows up, everyone will treat me like I cannot make decisions anymore. But good screening should not be about taking power away. It should be about giving people information.

Crystal 55:51

So the goal is not we found a problem, now you lose control. The goal is we found something we should look at closer, and now we can make a plan.

Sarah 55:58

And that is a healthy way to frame it. Information should support the person, not erase them.

Crystal 56:04

This also makes me think about how important it is that a biomarker not be treated like a final judgment. Because if people think one clue equals their whole future, they might be terrified of testing.

Sarah 56:13

That is why language matters. A biomarker is a clue. A screening tool is a first look, a diagnosis is a bigger process. And a person is more than any result.

Crystal 56:23

And that should be on a sharp. A person is more than any result.

Sarah 56:27

Honestly, yes, because it applies to so many parts of psychology and medicine. People are not just scores, they are not just scans, and they are not just symptoms. They are a whole people with histories, families, fears, strengths, and lives.

Crystal 56:39

And with Alzheimer's, that feels even more important because the disease already threatens identity.

Sarah 56:45

Memory is deeply connected to identity. So any conversation about memory loss has to be handled with care. We are talking about people's lives who may be afraid of losing pieces of themselves. We are talking about families who may be afraid of losing versions of someone they had always known. So when researchers work on early screening, it is not just an academic project. It's a real emotional weight.

Crystal 57:06

And that makes the research feel less cold. Sometimes people think of research as numbers and charts, but behind those numbers are families.

Sarah 57:15

Numbers matter, charts matter, data matters, but the reason the matters it matters is because people matter. That is the heart of this episode. We are talking about the brain's response and patents and research processes. But underneath all of that is a very human question. Can we understand this disease earlier? Can we help families sooner? Can we give people more time with the information?

Crystal 57:33

And that is a much bigger question than just can we measure a brainwave?

Sarah 57:37

It is. It is about why Dr. Rudo's work is so worth talking about because it sits in a space between science and real life. On the science side, we have EEG, brain responses, flashes of light, timing, and possible biomarkers. On the human side, we have families, memory, fears, planning, grief, and hope.

Crystal 57:54

And our job is to connect those two sides without making listeners like you and basically me feel lost.

Sarah 58:02

We are translating. That is the goal. We are talking the big research words and turning them into something people can actually hold on to. So by the time we say F V E P2, listeners may not be thinking, I have no clue what that means. They're thinking, okay, what is the possible body clue? Is it something to do with how fast the brain's response to flashes of light? Which already sounds less terrifying. Still sciencey, but less terrifying. Science-y but survivable. And that should be the subtitle. Honestly. And this is where we can start moving forward towards the actual tool used to record the brain's response because the F V E P2 is the brain's response researchers are measuring. We need to understand how they measure it. That brings us to the EEG. And that alphabet soup word. Alphabet soup word. EEG stands for electrocephogram, but we are not going to make listeners remember that. The simple version is this EEG records the brain activity using sensors on the scalp. That is it.

Crystal 59:01

So next we're going to explain the sensors.

Sarah 59:04

The sensors, the brain's activity, what an EEG can do and why and what it cannot do. Because we wanted to clear this up earlier. EEG does not read your thoughts. Thank God. No mind reading. No secret stealing, no sci-fi helmet that knows your childhood trauma, just electrical activity from the brain being recorded from the outside of the head.

Crystal 59:26

And that is a much better way to explain it.

Sarah 59:29

And once we understand the EEG, F V E P2 will be much easier to understand. Because then we can say flashes of light, brain response, EEG records to the response, researchers measure the timing.

Crystal 59:41

Flash goes in, brain answers, EEG listens, researchers measure. Perfect.

Sarah 59:49

So now we need to talk about EEG. And I know EEG is one of those words that sounds like it belongs in the hospital room or a research lab, but its basic idea is actually pretty simple. And EEG records brain activity. That is the short version.

Crystal 1:00:02

Already better than electro, whatever you said earlier.

Sarah 1:00:05

Electroechalogram? Yeah, absolutely not. That is fair. Nobody needs to casually say electroechlogram at dinner. So this for this episode, we're just gonna say EEG. EEG is a test that records the electrical brain activity happening in the brain.

Crystal 1:00:21

Oh, when you say electrical activity, do you mean like electricity electricity? Because that sounds alarming.

Sarah 1:00:27

It sounds alarming, but it's normal. Your brain cells communicate using that tiny electrical signal. That is how the brain cells send messages. It's not like lightning bolts shooting around your head. It's tiny activity happening all the time.

Crystal 1:00:40

So the brain is always kind of buzzing.

Sarah 1:00:43

Basically, yes. Even when you're resting, sleeping, thinking, listening, remembering, or staring into space, questioning every life choice you've ever made, your brain is active.

Crystal 1:00:51

So a brain spiraling at 2 a.m. would definitely have activity.

Sarah 1:00:55

Very much activity. Probably too much activity, actually. Rude, but true. EEGs give researchers and clinicians a way to record some of that activity from the outside of the head. The person usually has small sensors placed on their scalp. Those sensors are called electrodes. And electrodes sound scary. They do. But in this context, they are not scary. They are not shocking the brain, they are not pulling electricity into the brain, or they're not putting electricity into the brain. They're not controlling anything, they're just recording. Think of them like timely listeners. So they're listening to the brain, not bossing it around. Exactly. They're listening. A good example to explain EEG is this. EEG is like putting on tiny microphones on the outside of the head. But instead of recording sound, they record brain activity.

Crystal 1:01:40

And that makes it way less creepy because when people hear electrodes, they think of Frankenstein.

Sarah 1:01:46

They do. Or they think of a movie scene where someone is strapped to a machine and the machine somehow knows all their secrets. That is not what we're talking about. EEG does not read your thoughts, it does not know your memories, it does not know who you have a crush on, it does not know what embarrassing things you did in middle school. It records electrical patterns.

Crystal 1:02:01

Thank God, because nobody needs to access my brain like that.

Sarah 1:02:04

No one. And that is a major misconception about brain testing. When people hear brain activity, they sometimes assume it means mind reading. But EEG is not reading the context of your thoughts, it's measuring activity.

Crystal 1:02:14

So it can show that a brain is doing something, but not exactly what personal thought is happening.

Sarah 1:02:20

Yes. And that is a good way to say it. It can show patterns of activity, it can show timing, responses, but it's not like subtitles for your brain. No brain subtitles. No brain subtitles. In Dr. Ruder's research area, that timing piece is really important because the research is not asking what is this person thinking, it is asking how does the brain respond after the flashes of light.

Crystal 1:02:40

So the flash happens and the EEG records the brain's answer.

Sarah 1:02:45

Exactly. Flashes go in, brain answers, EEG listens, researchers measure. I love that because it's so simple. That is the core of it. And that is where EEG is useful because it's very good at measuring timing. It can record brain activity very quickly. So if researchers want to know how fast the brain responds to something, an EEG can show us that.

Crystal 1:03:07

So timing is the big thing here.

Sarah 1:03:09

Yes, timing matters a lot. Later when we talk about FEE P2, we're going to use the word latency. Latency just means delay or response time. So if I say P2 latency, I'm talking about how long it takes for the brain to respond to show up after the flash.

Crystal 1:03:24

Latency means response time.

Sarah 1:03:26

Yes, response time. So if someone rings your doorbell, latency would be how long it takes you to answer the door. If your phone dings, latency would be how long it takes you to look at it. And if someone asks you a question, latency would be how long it takes you to respond.

Crystal 1:03:41

So with the brain, researchers are basically asking, how long did it take the brain to answer the flash?

Sarah 1:03:48

Exactly. And that is the plain language version. How long did it take the brain to answer?

Crystal 1:03:53

And that answer might be slower in some people with mild cognitive impairment or Alzheimer's.

Sarah 1:03:58

That is what some of this research has looked at. In certain studies, people with amnestic, mild cognitive impairment, or Alzheimer's dementia have shown delays in their P2 response. And again, we want to break that down when we get to F E E P2. But for now, the important part is the EEG helps research measure the brain's response time.

Crystal 1:04:16

So we use EEG instead of like a brain scan?

Sarah 1:04:20

Good question. Different tools give different kinds of information. A brain scan might show structure. Structure means what the brain looks like. For example, a CN may help doctors see parts of the brain have changed size or other medical concerns. And EEG is different. It's more like activity and timing. It tells us something about how the brain is functioning in the moment.

Crystal 1:04:40

So one is more like taking a picture of the city and the other is listening to the traffic.

Sarah 1:04:44

Yes. Perfect. A brain scan can be like a picture of the city. EEG is more like listening to traffic and timing how fast the message is moving.

Crystal 1:04:53

That is helpful because the brain can look one way but function another way.

Sarah 1:04:57

And that is one reason researchers use different kinds of tools. No single tool tells a whole story. A brain scan can be useful, memory testing can be useful, blood work can be useful, family observation can be useful, EEG can be useful. Each one gives it a different clue.

Crystal 1:05:11

So again, we're building a puzzle.

Sarah 1:05:13

And the EEG may be one puzzle piece. Not the whole puzzle, but an important piece when researchers care about timing.

Crystal 1:05:20

Is an EEG painful?

Sarah 1:05:22

No. EEG is generally not painful. The sensors sit on the scalp. There may be gel or paste used to help the sensors pick up the signal clearly. That can feel weird or messy, but it should not hurt.

Crystal 1:05:32

So it's more annoying hair gel than painful medical tests?

Sarah 1:05:36

Pretty much. Very scientific-y hair gel. That sounds like the worst salon service slash experience ever. It would not be your favorite, but compared to more invasive medical tests, EEG is much less intense. And remember, invasive means something goes inside the body. EEG is non invasive. Nothing has to be cut open, nothing has to go into the brain. Are on the outside. And that matters for people who are scared of testing. It does because if a screening tool can be non-invasive, that can make it more approachable. It may still feel unfamiliar, may feel clinical, may be, but it's not surgery. It's not brain implant. It is not mind control. It's a sense, it is sensors recording activity from the scalp.

Crystal 1:06:20

I think people need that reassurance because brain stuff feels scary fast.

Sarah 1:06:25

It does. The second someone hears brain tests, they may imagine the worst thing possible. And that's why plain language matters. If we can explain what the test does and what it does not do, it takes away some of that fear.

Crystal 1:06:35

So let me try to say it back. EEG is a test that records brain activity from sensors on the scalp. It does not read thoughts, it does not hurt, it does not put electricity into the brain, it mostly listens to the brain's activity. And in this research, it helps measure how fast the brain responses after a flash of light. That's exactly it. I'm becoming very educated in this episode.

Sarah 1:06:58

You are. And I love it because this is exactly how I want listeners to feel. Not overwhelmed, not talked down to, just able to follow it piece by piece.

Crystal 1:07:07

And I think that matters because people check out when they hear too many big words at once.

Sarah 1:07:12

And honestly, that is one of the biggest problems with science communication. Sometimes the information is important, but the language makes people feel locked out. And when people feel locked out, they stop listening.

Crystal 1:07:22

Which is dangerous with health topics because people need to understand enough to ask good questions.

Sarah 1:07:28

The goal is not every listener to become a neuroscientist, but the goal is for listeners to understand enough to be able to ask better questions, talk to doctors more confidently, and hopefully understand why research like this matters.

Crystal 1:07:38

So the EEG is the tool. Now, what is the actual thing being measured? That brings us to the FVEP2.

Sarah 1:07:47

The Star Wars robot. The Star Wars robot. FVEP2 is not as scary as it looks. It's just the name for a specific brain response that happens after flashes of light. And it's easier if we break the name down and it becomes easier to understand.

Crystal 1:08:03

So please break it apart because right now it looks like someone smashed a keyboard.

Sarah 1:08:10

FVEP stands for flash visual evoked potential. Flash means quick light. Visual means has to do with seeing. Evoked means something caused it to happen. And potential means the brain response that can be measured. So flash visual evoked potential means a brain's response caused by seeing a flash of light.

Crystal 1:08:30

That was a perfectly timed lightning strike, by the way. Like as soon as you said, it really did. And that is actually not bad.

Sarah 1:08:38

And P2 is just one part of that response. It is a specific bump in the brain wave that researchers look at.

Crystal 1:08:45

So the F V E P P2 means a specific part of the brain's response after a flash of light.

Sarah 1:08:52

We're going to explain the flash. The brain's response, the P2 part, the timing, and why that timing may matter for mild cognitive impairment and Alzheimer's research. So we finally made it to the robot name. We did. And now we're going to make the robot name human. Oh. Oh, okay. Okay. So we have built the foundation. We've talked about forgetfulness. We talked about dementia, and we've talked about Alzheimer's. We've talked about mild cognitive impairment, biomarkers, which are body clues. And we talked about EETs, which record the brain activity from sensor, cell, and scalp. So we are ready for the big science-looking word, F E E P2. The robot. The robot.

unknown 1:09:33

The robot.

Sarah 1:09:34

F V E P2 sounds like a robot, a password, or something you would need to tie up into a lab computer before it lets you in.

Crystal 1:09:41

But once you break it down, it's not as scary as it looks. Please break it down slowly because my brain sees letters and numbers together and immediately leaves the room.

Sarah 1:09:52

Bear. Flash, visual, evoke potential is what F V E P stands for. So let's take it piece by piece. Flash means quick burst of light. Visual means it has to do with seeing. Evoke means something caused it to happen. Potential means the brain's response that can be measured. So when we say flash visual evoke potential, we mean a brain's response caused by seeing flashes of light.

Crystal 1:10:13

Okay, that is actually way less scary. So F V E P just means the brain reacted to a flash.

Sarah 1:10:21

Flash happens. The eyes in the brain picked it up, the brain responded, and the EEG recorded that response. And the flash goes in, brain answers, EEG listens. Perfect. That's the whole idea. We're done now. Okay. No, just kidding. Now the P2 is a specific piece of the brain response. When the EEG records a brain activity, the response can look like a wave. And that wave has different parts. Researchers give names to those parts so that they can study them. P2 is part of that wave.

Crystal 1:10:51

So P2 is not a separate disease or a separate test?

Sarah 1:10:55

No. P2 is just a piece of the brain's response. Think of it like looking at a song on a sound wave. The whole song has different beats and peaks. If you are studying one specific beat in the song, you need to name, you'll need a name for it. P2 is one important beat in the brain's response after the flash.

Crystal 1:11:12

And that helps. So the whole response is the song. The P2 is just one beat researchers care about.

Sarah 1:11:19

Yes. In this research area, the P2 beat matters because researchers are looking for its timing. Timing meaning how fast it shows up? The science word for that is latency. Latency means delay or response time. So when someone says P2 latency, they mean how long it takes P2 to response to happen after the flash.

Crystal 1:11:38

So it's not just did the brain answer, but how long did it take the brain to answer as well?

Sarah 1:11:43

Exactly. And that timing is where Alzheimer's and mild cognitive impairment research becomes interesting. Some researchers have found that people with Alzheimer's disease or amnestic mild cognitive impairment can show a delay in the P2 response.

Crystal 1:11:56

So the brain response may be slower.

Sarah 1:11:59

That's a simple way to put it. And in some studies, the P2 response shows up later. Not absent, not gone, later, delayed.

Crystal 1:12:07

So the brain still answers the flash, but the answer may take longer.

Sarah 1:12:11

Yes, and that delay may give researchers a clue. Again, not a whole answer, not a diagnosis by itself, but a possible clue. A body clue. Exactly. FVEP2 is being studied as a possible biomarker, a possible body clue. And remember, a biomarker is something we can measure that may tell us something important about what is happening inside the body.

Crystal 1:12:33

So in this case, the body clue is how fast the brain responds to a flash of light.

Sarah 1:12:38

Yes, and that's the easiest way to understand it. Researchers are asking: can the timing of the brain response help identify early memory-related brain changes? Can it help us detect mild cognitive impairment? And can it help us understand Alzheimer's-related changes earlier? Can it become part of a bigger screening process?

Crystal 1:12:55

I like that you said a part of a bigger process because I feel like people hear this and might think, oh, so flashes alike can diagnose Alzheimer's.

Sarah 1:13:03

Right. And that's not how we want to say it. The flash itself does not diagnose Alzheimer's. The flash just is just a trigger. It gives the brain something simple to respond to. The EEG records the response, and then researchers look at the timing of that response. And even then, it should be part of the bigger picture.

Crystal 1:13:20

So the flash is like knocking on the door. The brain answers in the response, and the EEG is listening at the door, and the researcher is timing how long it took someone to answer said door.

Sarah 1:13:31

That is perfect. The flash is the knock, the brain responds for the answer, EEG records the answer, and timing may be the clue.

Crystal 1:13:38

And that makes it so much easier because if you had just said they're studying the latency of the flash visual evoke potential P2 component, I would have blacked out.

Sarah 1:13:48

And that's why science communication matters. That sentence is technically useful in a research paper, but not for a podcast. We need to translate it, right? So instead of saying FVE P2 latency may serve as a biomarker, we can say researchers are studying whether the brain's response to time to flashes of light can give us an early clue about memory-related brain changes.

Crystal 1:14:09

And that is the sentence. That is the one people can actually understand.

Sarah 1:14:14

And I want to explain one more piece because many people wonder why this response would have anything to do with Alzheimer's. Because on the surface, it sounds random. Like, why would a flashlight tell us anything about memory?

Crystal 1:14:25

Yes, that was literally my next question because Alzheimer's is memory. Light is vision. So how are those connected?

Sarah 1:14:32

Great question. The simple answer is that the brain systems involved in the response are connected to the areas and chemicals that are important in Alzheimer's disease. One chemical that matters here is called acetylcholine.

Crystal 1:14:44

There's a big word.

Sarah 1:14:45

Yes, acetylcholine. We break it down more in the next section, but for now, think of acetylcholine as a brain messenger. Brain cells use messenger chemicals to talk to each other. Acetylcholine is one of those messengers and it is important for attention, learning, and memory.

Crystal 1:15:01

So it helps brain cell pass messages.

Sarah 1:15:04

Yes. Think of the brain cells like people in a classroom passing notes. Aceticoline is one of the messengers helping the notes get to where they need to go. In Alzheimer's disease, this messenger system can become damaged. And that matters because the FVEP2 response seems to involve parts of the brain that relies on that system.

Crystal 1:15:22

So the flash is not really about the eyes, only it's about how the brain processes said flash.

Sarah 1:15:27

The eye sees the light, the brain has to process it. And researchers are interested in whether that brain processing change when memory-related brain systems are affected.

Crystal 1:15:36

So, like it's using a simple visual event to check how fast parts of the brain communication system is working.

Sarah 1:15:42

That's a great way to put it. The simple flash creates a brain response. The response gives researchers something measurable. And the timing of that response may tell us something about the brain's communication systems.

Crystal 1:15:52

And that makes way more sense now. We flash lights at people and somehow know their memory.

Sarah 1:15:58

Right. We are not saying that flash knows their memory. We are saying that brain response to the flash may reflect something about the brain's functioning. And that distinction matters.

Crystal 1:16:06

Because otherwise it sounds like magic.

Sarah 1:16:09

This is not magic. It is measurement. And the measurement has to be careful. That is one of the biggest themes of this research. The FEP2 idea is promising, but it's also tricky.

Crystal 1:16:19

Why tricky?

Sarah 1:16:21

Because brains vary, people vary, equipment setup can matter, the way the flash is presented can matter, whether someone's eyes are open or closed can matter. And where the sensors are placed can matter. How researchers identify the P2 part of the wave can matter.

Crystal 1:16:34

So even though the basic idea sounds simple, the actual research has to be really precise.

Sarah 1:16:40

Very precise. This is one of those things I learned to appreciate more through my coursework. The public may hear brain response to the flashes of light and think that that sounds straightforward, but research tiny details can change the result.

Crystal 1:16:53

Like what?

Sarah 1:16:54

Like the color of the light, the brightness of the light, the timing in between flashes, and whether the person's eyes are open or closed. How clean the EEG signal is, and what do the participants blink where the electric electrodes are placed? How researchers decide which part of the wave is truly the P2 response. That is a lot. It is. And that is why research takes time. You're not just asking, does this work? You are also asking under what conditions does this work best? And how do we make it reliable? How do we make it accurate? And how do we reduce the noise? How do we make sure that the test is measuring what we think it is measuring?

Crystal 1:17:31

Oh, noise meaning anything that messes with the signal.

Sarah 1:17:34

Noise is anything that makes signal harder to read. Regular life, if you are trying to listen to someone talk but there's loud music in the background, the music is noise. And in EEG, noise can come from blinking, movement, muscle tension, equipment issues, or other activity that makes brain signals harder to interpret.

Crystal 1:17:50

So researchers are trying to hear one important sound in a room full of other sounds.

Sarah 1:17:55

And the P2 response to the sound they are trying to hear clearly.

Crystal 1:17:58

And that explains why you keep saying this is promising, but not a magical wand.

Sarah 1:18:04

Because research has shown important group differences. That means when researchers compare groups like people with Alzheimer's or MCI compared to healthy controls, the P2 timing can look different. But using it to make decisions about one individual individual person is harder.

Crystal 1:18:20

Wait, explain that because that sounds important.

Sarah 1:18:23

It is important. Imagine you compare two classrooms. One classroom is louder on average than the other. If you stand outside both rooms, you might say classroom A is louder than classroom B. Well, that is a group difference. But if you hear one kid yelling in the hallway, it may be harder to know which classroom that one kid came from.

Crystal 1:18:40

So groups can be easier to tell apart than individual people.

Sarah 1:18:45

Exactly. And in research, the tests might show the difference between groups, but still not be perfect at sorting one individual person. That is why research keeps refining it and they are trying to make it the clue clearer and more stable and more useful.

Crystal 1:18:59

So the goal is to reduce the messy overlap.

Sarah 1:19:02

Yes, that messy overlap is a big challenge. If some healthy people have slower responses and some people with MCI have faster responses, the group may still be different overall, but the test may not be strong enough by itself for individual diagnosis.

Crystal 1:19:15

So that is why it has to be part of a bigger assessment.

Sarah 1:19:19

The honest version is this FVEP2 is a promising brain response that may help researchers and clinicians understand early Alzheimer's-related changes. It may help move the field forward, but it still has to be studied, refined, and used carefully.

Crystal 1:19:33

That feels realistic. It gives credit to the research without making it sound like a cure.

Sarah 1:19:38

And I want to make sure we praise the work for what it is: a step forward, a meaningful contribution, a research path that has taken years of persistence, not a magic solution.

Crystal 1:19:50

Okay, so quick recap before my brain tries to make F V E P P2 complicated again.

Sarah 1:19:57

Let's recap.

Crystal 1:19:58

F V E P P2 is a brain response after flashes of light. The flash is not the treatment, the flash is the knock on the door, the brain response is the answer, E G records the answer, researchers measure how fast the answer happens, and that timing might be a body clue connected to early memory-related brain changes.

Sarah 1:20:19

And the timing word is latency.

Crystal 1:20:21

Latency means response time.

Sarah 1:20:24

And P2 is one part of the brain wave researchers are a study. So P2 is the beat in the song. The whole brain response is the song. P2 is one beat researchers care about.

Crystal 1:20:35

And now we need to talk about why the beat may be connected to memory and Alzheimer's.

Sarah 1:20:40

And that brings us to acetylcholine, the brain messenger chemical. And this is where we can understand why a visual response to light may connect back to Alzheimer's research.

Crystal 1:20:50

So next we're learning about the brain messengers.

Sarah 1:20:54

Brain messengers memory and why a delay response may matter. So now we need to talk about the brain chemical piece. And the big word here is acetylcholine. Acetic who? Aceticoline. That sounds like something on the back of a shampoo bottle. It kind of does, but in the brain, acetylcholine is important. And we are gonna make that very simple. Aceticoline is a brain messenger. That is the easiest way to understand it.

Crystal 1:21:19

Brain messenger. Okay. So it helps brain cells talk to each other.

Sarah 1:21:23

Your brain is made of cells, and those cells need to send messages. They are constantly communicating. When you remember something, pay attention, learn something new, recognize where you are, or follow a conversation, your brain cells are passing messages back and forth. Aceticoline is one of the chemicals that help those messages move.

Crystal 1:21:39

So it's like a delivery person for brain messages.

Sarah 1:21:42

Yes. Think of the brain cells like people in a classroom trying to pass notes. The notes are the messages. Aceticoline helps those notes get passed along. And if the messenger system is working well, the note moves the word forward smoothly. And if the messenger system starts breaking down, the notes may not get where it needs to go as quickly or clearly. And that could affect memory. Aceticoline is connected to attention, learning, and memory. And those are things that can become harder in Alzheimer's disease.

Crystal 1:22:07

So Alzheimer's is not just memory disappearing out of nowhere. It is connected to changes in how the brain sends messages.

Sarah 1:22:14

Exactly. And that is really important. Memory is not just one box in the brain, it's a process. Your brain has to notice information, pay attention to it, store it, and then put it back out later. And if messages system is, and if that message system is disrupted, that process can become harder.

Crystal 1:22:29

So if I'm trying to remember someone's name, my brain has to do a bunch of little jobs behind the scene.

Sarah 1:22:35

Yeah, it has to pay attention to when you hear the name, it has to connect the name to the person, it has to store that information. And then later, when you see the person again, you have to pull that name back up. That's a lot of uh brain teamwork.

Crystal 1:22:47

That add to see to who is part of that teamwork?

Sarah 1:22:50

Yes, acetylcholine. It helps support the teamwork. Now with Alzheimer's disease, one of the systems that can be affected is the cholinergic system. Chinergic. That is another big word. So when I say clinergic, I mean the brain system that uses acetylcholine.

Crystal 1:23:11

Okay, so clonors something equals asana something related?

Sarah 1:23:18

It is where the FBEP2 research becomes more understandable because researchers are interested in the P2 response partly because it may reflect activity in the brain area that relies on the acetylcholine system.

Crystal 1:23:30

So the flash of light is not about memory by itself, it's more about testing a brain system that may also be important for memory.

Sarah 1:23:38

That is the key. The flash is just a simple way to get the brain to respond. But the response may tell researchers something about how certain brain systems are working. And if those systems are affected early in Alzheimer's, then the timing of that response may become useful as a clue.

Crystal 1:23:52

So it's not light equals memory, it's brain reaction to light may show something about the brain's communication system.

Sarah 1:24:00

Perfect. The flash is not reading memory, it's not showing someone's thoughts, it's not showing what they forgot. It's giving researchers a clean, repeatable event. Multiple flashes happen actually. The brain responds, EEG records the response, researchers look at the timing, and that timing may reflect how efficiently part of the brain is processing information.

Crystal 1:24:18

And that makes it feel a lot more logical. Because at first I was like, how do we go from flashing of light to Alzheimer's?

Sarah 1:24:25

And that question makes sense because without the brain chemistry piece, it can sound random. But once we understand that Alzheimer's affects the brain communication systems, especially systems tied to memory and attention, then the idea becomes clear. Researchers are trying to find early signs of those systems changing.

Crystal 1:24:42

So the acetylcholine is kind of one of the bridges between the flash responses and the memory disease.

Sarah 1:24:48

Yes, that is a really good way to say it. Aceticoline is one of the bridges. It helps explain why a visual brain response might matter in Alzheimer's research.

Crystal 1:24:58

When that messenger system starts having problems, the P2 response may slow down.

Sarah 1:25:04

That is the idea researchers have explored. And in some studies, people with Alzheimer's disease or amnestic mild cognitive impairment show a delayed P2 response. Delayed means it takes longer to happen, so the brain still responds to the flash, but the P2 is part of the response, may show up later.

Crystal 1:25:20

So again, it's like the doorbell analogy analogy. The flash rings the doorbell, the brain answers, the researchers are asking, how long did it take?

Sarah 1:25:29

Exactly. And if the answer takes longer in a certain group, researchers ask why. Could that delay reflect changes in the brain system affected by Alzheimer's? Could it help identify people at risk earlier? Could it become one helpful clue in a larger screening process? Those are the kinds of questions this research is built around.

Crystal 1:25:46

I like that we keep saying questions because research is really just carefully questioning.

Sarah 1:25:52

Research is not just knowing things, it's asking better and better questions and then testing them carefully. And with Alzheimer's, one of the big questions is can we find earlier signs? And before the symptoms are severe, before families are in crisis, and before the person loses independence.

Crystal 1:26:06

And that is why the earlier warning sign stage matters, MCI.

Sarah 1:26:10

Mild cognitive impairment is important because it can be one of those earlier places where changes show up. And if researchers can find a brain clue connected to MCI, that could help with early screening.

Crystal 1:26:20

But again, not everyone with MCI gets Alzheimer's. Correct.

Sarah 1:26:24

And I want to keep repeating that because it does matter. MCI is a warning light, not a sentence. A warning light says check this, it does not say everything is doomed.

Crystal 1:26:34

And that is an important difference because health information can make people spiral.

Sarah 1:26:38

And that's why this research has to be explained carefully. The goal is early screening and not to terrify people. The goal is to give better information earlier.

Crystal 1:26:45

So let me try to connect all of it. Alzheimer's can affect brain systems that help with memory and attention. One important brain messenger is acetylcholine. The F V E P2 response may involve brain areas connected to the messenger system. So if that system is changing, the brain's response to flashes of light might change too.

Sarah 1:27:06

That's an excellent summary. Science.

Crystal 1:27:10

Science, but make it digestible.

Sarah 1:27:12

And I wanted to add one more thing. When we talk about the brain chemicals, people sometimes imagine it too simply. Like, oh, Alzheimer's just low acetylcholine. But the brain is more complicated than that. Alzheimer's involves many changes. Brain cells are damaged, communications break down, memory systems are affected, other biological changes are involved too. So acetylcholine is important, but it's not the whole story.

Crystal 1:27:34

So we should not reduce the whole disease to one chemical.

Sarah 1:27:38

Right. That would be too simple. It is one important part to a much bigger picture, but it helps us understand why the P2 response caught researchers' attention.

Crystal 1:27:47

Because if a brain response is connected to a system that Alzheimer's affects, then measuring that response might tell us something useful.

Sarah 1:27:54

That is the research logic, and that is why Dr. Rudd's work matters. He has spent years studying the Brain's response and whether it could help identify mild cognitive impairment related to Alzheimer's early.

Crystal 1:28:06

And that is where the grit comes in again. Because studying one brain response for years sounds like it would take a lot of patience.

Sarah 1:28:14

It absolutely does. And it takes precision because, as well, as we said earlier, the response itself is small and sensitive. Researchers have to be careful how the flash is shown, how the EEG is recorded, how the signal is cleaned, and how the P2 is identified.

Crystal 1:28:29

It is like trying to catch a tiny wave in the ocean.

Sarah 1:28:33

Yes. That is a great analogy. The brain is always active, there's always waves everywhere. And researchers are trying to find one specific wave after one specific event. The event is the flash, the wave is the brain's response. The piece they care about is the P2.

Crystal 1:28:47

So they're not just staring at random squigglies and guessing.

Sarah 1:28:50

There's a method. There's timing, equipment, repeated flashes, averages, procedures. All of that is meant to make the signal clearer. Repeated flashes? Yes. In research like this, the flash is usually repeated many times. The reason is one single response can be messy. But if you repeat the flash and average the brain responses together, the important pattern can become clearer.

Crystal 1:29:15

So it's like taking a bunch of blurry pictures and then combining them to see the image better.

Sarah 1:29:19

Or like asking the same question many times to hear the average answer. The brain signals can be noisy, so repetition helps researchers see the response more clearly.

Crystal 1:29:30

And that makes sense because one flash might have too much noise, but many flashes give a better pattern.

Sarah 1:29:36

And that is part of what makes this research both fascinating and difficult. The idea is simple when we say it plainly, flashes go in, brain answers, EEG listens, researchers measure timing, but the actual research process behind that simple sentence is very detailed. And that is why it takes years. Because every detail matters. The light is different, the response might be different. And the eyes are open instead of closed, the response might be different. And if the sensor is being in a different spot, the responses might be different. If the signal is noisy, the results might be harder to read.

Crystal 1:30:08

So when people wonder why science takes so long, this is why. Because researchers are not just asking one question, they're trying to make sure the answer is real.

Sarah 1:30:17

Science is slow because it has to be careful, especially if the goal is eventually helping patients. You do not want a screening tool that sounds exciting but does not work reliably. You want something that has been tested, challenged, refined, and improved.

Crystal 1:30:31

And that is actually comforting because slow can feel frustrating, but slow also means careful.

Sarah 1:30:37

Slow can mean careful. And in a field like Alzheimer's research, careful matters. Families deserve tools that are not just exciting in the headlines, but they deserve tools that are accurate, ethical, and useful. I want to explain one more research challenge because it is important for listeners to understand why F V E P2 is promising, but it is also why it has needed so much refinement. And that challenge is variability.

Crystal 1:31:00

Variability means that things are not the same every time.

Sarah 1:31:05

Variability means differences. Differences between people, differences between the same people or same person, people. Differences between testing conditions and FEEP2 variability has been one of the biggest challenges.

Crystal 1:31:19

So even if people with Alzheimer's or MCI show a delayed response as a group, individual people can still vary.

Sarah 1:31:27

So now we need to talk about one thing. The biggest challenge in research, variability.

Crystal 1:31:33

And that would sound less scary than acetylcholine. So I feel like I can handle this one.

Sarah 1:31:38

You can. Variability just means difference. Difference between people, difference in the same person from one moment to another. Difference in how the test is done, difference in how the brain responds. So basically, humans are inconsistent. That is the simple version. Humans are inconsistent, and that makes research harder.

Crystal 1:31:55

That feels very on-brand for humanity.

Sarah 1:31:58

Very on-brand. And it matters a lot with F E P P2, because when researchers study this brain response, they are looking at timing. They're asking how long does it take the brain to respond after the flash of light? But the brains do not respond like machines where every person gives the exact clean number.

Crystal 1:32:15

Because everyone's brain is different.

Sarah 1:32:18

One person may naturally have a slight faster response. Another person may naturally have slightly slower responses. Someone might be tired, they might blink, might move, might be anxious, equipment setup might be a little different, light might be a little different, sensor placement might be a little different. All of these little details can affect the signal.

Crystal 1:32:36

So the problem is not just finding the brain response, it's making sure the response is clear and reliable.

Sarah 1:32:43

Yes, reliability means you can trust it to be consistent enough to be useful. If a bathroom scale says you weigh 150 pounds and then two seconds later it says 230, and then two seconds later it says 90, you probably would not trust that scale. I would throw that scale away immediately. Well, I mean, if it's saying lower than my key bag. Exactly. But because it's not reliable, it is giving numbers, but not numbers that are stable. With brain research, researchers need the actual measurement to be stable enough that it actually means something.

Crystal 1:33:13

So F V E P P2 has shown difference, but the challenge is making those differences clear enough to use with individual people.

Sarah 1:33:22

That's in that's yeah, that's very important. In research, sometimes you can see the difference between groups. For example, one group may have a slower average response than another group. That's meaningful. But using that same measurement to classify one single person can be harder.

Crystal 1:33:36

And that is like the classroom example from earlier. One classroom might be louder on average, but one loud kid in the hallway does not tell you for sure which classroom they came from.

Sarah 1:33:45

That's the same that is the issue. Um if people with Alzheimer's or mild cognitive impairment tends to have delayed P2 response as a group, that matters. But if there's too much overlap between people, then it becomes harder to use a test by itself for one person.

Crystal 1:33:58

And overlap meaning some people without the disease may also have slower responses, and some people with the disease may not be as slow.

Sarah 1:34:07

Yes, that's exactly it. And that is why researchers keep trying to refine the method. They're asking how do we make the signal clearer? How do we reduce the noise, and how do we reduce extra differences that are not related to the disease? How do we make the test more accurate and how do we make it more useful?

Crystal 1:34:23

So when people hear research, they might imagine scientists only trying to prove the big idea. But part of it is also fixing all the tiny things that could mess up the big idea.

Sarah 1:34:34

That's a really great way of saying it because research is not just does this work, it's also what gets in the way of this working. And with F-E-E-P-P2, one thing that gets in the way is variability. Differences. Differences. And those differences can come from a lot of places: person, brain, equipment, flash, eyes, sensors, environment, even tiny movement.

Crystal 1:34:55

And that makes the whole thing feel delicate. It is delicate.

Sarah 1:34:59

EEG is powerful because it measures brain activity very quickly, but it also is sensitive to noise. If someone moves their face, clenches their jaw, blinks, or shifts around, it can affect the signal.

Crystal 1:35:09

So the brain wave is like a whisper, and the movement is like someone slamming a door in the background.

Sarah 1:35:15

Right. That's a perfect analogy. Uh researchers are trying to hear the whisper. The door slam makes it harder. That is why repeated flashes on average can help. If you show the flash many times and record many responses, you can start to see a pattern more clearly.

Crystal 1:35:29

So one response might be messy, but a bunch of responses together gives a clearer picture.

Sarah 1:35:33

And that's part of why people process it so carefully. You cannot just flash a light once and say, Well, there it is. You need repeated trials, you need clean data, you need consistent methods, you need to know what part of the waves you're looking at.

Crystal 1:35:45

I feel like that's where people do not understand why research takes so long because they hear the simple version and think just to flash the light and measure it.

Sarah 1:35:53

The simple idea is easy to say. The careful science is harder to do. And that brings me to how my own coursework connects to this research area.

Crystal 1:36:01

Okay, so explain your piece very carefully because I know you wanted to be clear that you are not claiming his work.

Sarah 1:36:08

My connection is as a student. I have had multiple classes with Dr. Aruda and I have completed coursework connected to this area of research. I'm not an inventor of this research, I'm not an owner of the patent, and I'm not speaking for him, UWF, BioPac, or any other research team. But throughout my coursework, I got to engage with the topic in a more hands-on academic way.

Crystal 1:36:28

And your project had to do with the light filters.

Sarah 1:36:31

My coursework looked at how different light filters may affect FVEP P2 response. And again, F E E P P2 means the brain's response after flashes of light, specifically the P2 part of that response. So the question was basically: if we change the lighting by using different filters, does that change the brain's response?

Crystal 1:36:49

So, like changing the color or type of light?

Sarah 1:36:52

Yes. That's a simple way to say it. Different filters can change the light that reaches the person's eyes. But since this whole research area depends on brain responding to flashes of light, the details of light matters.

Crystal 1:37:02

And that makes sense. If the flash is the knock on the door, then changing the light is like changing how loud or what kind of knock it is.

Sarah 1:37:10

A soft knock, a loud knock, a knock on wood, and a knock on glass. The response may be different depending on the knock. So in this research area, light is not just background information. Light is part of the method.

Crystal 1:37:21

And method matters because if the method changes, the results can change.

Sarah 1:37:26

And that's one of the big lessons. In research, tiny details matter. Something that sounds small to the public may be huge in the lab. What kind of light? How bright is it? What color is it? How many flashes? How far apart are the flashes? Are the person's eyes opened or closed? Are the electrodes placed correctly? How is the signal cleaned? And how P2 is identified? How is P2 identified?

Crystal 1:37:47

That is a lot of tiny questions.

Sarah 1:37:50

It is. And each tiny question can affect the big question. That is why standardizations matter.

Crystal 1:37:55

And standardizations means doing things the same way each time?

Sarah 1:37:59

Yeah, standardization means having the consistent method, like following the same recipe. If you and I have both baked the same cake, but I use two cups of sugar and you use half a cup, I bake it at 350 and you bake it at 500. And I use vanilla while you use garlic, we are not really testing the same recipe anymore. First of all, garlic cake, it's a crime. It is, but that's the point. You know, if the method changes too much, you cannot tell what caused the result. What's the recipe? Was it in the oven? Was it in the sugar? Was it in the garlic nightmare?

Crystal 1:38:32

Lab does the flash differently, records differently or measurable differently, it's harder to compare results.

Sarah 1:38:38

Exactly. And that has been an issue in this research area. To make FVEP2 more useful, researchers have to keep asking what conditions produce the clearest and most reliable response.

Crystal 1:38:49

And to clarify, it was definitely the garlic. So your coursework helped you see that even light filters can matter.

Sarah 1:38:57

Yes, and it helped me understand that research is not only about big theories, it's also about small methods, details that make a measurement stronger or weaker. And in my project, different filters and conditions were compared to see how they affected P2 response. The bigger point is that light properties can influence the brain response, and that matters when researchers are trying to build a reliable screening tool.

Crystal 1:39:16

So the filter project was like looking at one piece of the bigger machine.

Sarah 1:39:20

Yeah, one piece of the bigger machine. F the EPP2 research is the bigger area. The filter question is one part of the understanding how the response works and how the method could be refined.

Crystal 1:39:32

I think that is cool because people might think research only counts when it's the final invention. But there are these smaller studies that help the final thing become clearer.

Sarah 1:39:42

Research is built in layers. One study asks one question, another study asks another. A review pulls together what is already known, and the method study checks whether the setup is reliable. Another study tests a new version, and slowly the field becomes clearer.

Crystal 1:39:58

So science is not one giant leap, it's just a bunch of carefully placed stepping stones.

Sarah 1:40:02

And sometimes one of those stepping stones is not glamorous, but it matters. Testing methods, details matters, checking variability matters, and trying to reduce the noise matters. Because if the long-term goal is early screening, the tool has to be dependable.

Crystal 1:40:14

Dependable meaning people can trust it.

Sarah 1:40:16

Dependable, reliable, accurate, and useful. And those are not small things, especially when you are talking about a disease as serious as Alzheimer's.

Crystal 1:40:24

Because you do not want to scare someone with the test results, they're just not clear.

Sarah 1:40:29

False alarms can hurt people, miss signals can hurt people, overconfidence can hurt people. And that's why careful research matters. A screening tool has to be handled responsibly.

Crystal 1:40:38

When people hear about earlier screening, they may think more testing is always better, but bad testing could also create problems.

Sarah 1:40:45

And that's a really mature point. More testing is not automatically better, or if the results are misunderstood, a good screening tool should help guide the next step. It should not create confusion, panic, or false certainty.

Crystal 1:40:56

So the dream is not just test everyone. The dream is have better tools that actually help.

Sarah 1:41:01

Better tools, better information, timing, support. That is the goal.

Crystal 1:41:06

And for F V E P2 researchers are trying to make the brain response clue clearer.

Sarah 1:41:14

Because the basic idea has promised people with Alzheimer's or AMCI can show delay P2 response in a group. But if the response varies too much from person to person, then researchers have to figure out how to reduce that variability.

Crystal 1:41:27

So how do they do that?

Sarah 1:41:28

They test the method. They look at things like light type, brightness, flash timing, recording sight, eye status, and signal processing. They ask whether one step gives a cleaner or more reliable response than others. They also look at whether certain changes make the test better or worse.

Crystal 1:41:45

And sometimes the answer might be this idea seemed like it would help, but it did not help enough.

Sarah 1:41:50

And that's still useful. That is another thing people misunderstand about research. A study does not have to give the exciting answers to be valuable. Sometimes a study says this method does not improve the measure. That matters because it tells future researchers where not to waste time or what needs to be changed.

Crystal 1:42:07

So even when something does not work the way researchers hoped, it still teaches them something.

Sarah 1:42:12

That's exactly how science moves. Not every result is flashy, not every result becomes a headline, and but each result can sharpen the question.

Crystal 1:42:20

I like that. Each result sharpens the question.

Sarah 1:42:23

And in Dr. Ruda's research area, that long process of sharpening the question is part of what makes the patent milestone meaningful because it's not coming out of nowhere. It came after years of studying the response, the methods and the limitations and the possibilities.

Crystal 1:42:37

So when we praise the patent, we're not just praising a document, we're praising the persistence that was behind it.

Sarah 1:42:44

Exactly. The patent is a milestone, but the grit is the story. The years behind it are the story, the facts that someone kept working on a difficult research question is the story.

Crystal 1:42:54

And it is even more powerful because the research is connected to something so human. Memory, families, aging, fear, hope.

Sarah 1:43:02

That is what makes this more than a technical topic. We are talking about the brain signal, but the reason anyone cares about the signal is because of people. People who are forgotten, people who are afraid, people caring for someone they love, people wondering whether their changes they see are normal or something more. People hoping for tools that can tell them earlier what might be happening.

Crystal 1:43:25

So variability is not just an annoying research problem, it is a barrier between promising ideas and something that could actually help people. That was beautifully said.

Sarah 1:43:34

Variability is one of the those barriers. And refining the method is part of trying to lower that barrier. The simple takeaway is this FEP2 is promising because the brain's response time to flashes of light may give researchers a clue about early memory-related brain changes. But brains are messy. People are different, signals can be noisy. So researchers have to keep refining the method to make the clue clearer and more reliable.

Crystal 1:43:58

Promising but needs precision.

Sarah 1:44:01

Exactly. Promising but needs precision.

Crystal 1:44:03

It sounds like a summary of all the science.

Sarah 1:44:06

Honestly, yes. And now that we understand that, we can talk more directly about Dr. Aruda, who he is, what his research focuses on, and why this patent milestone matters, and why I think his persistence deserves to be recognized.

Crystal 1:44:18

So now we're moving from the science setup into the person behind the research.

Sarah 1:44:23

Yes, because the science matters. But so does the scientist. We're going to talk about Dr. James Aruda, his work, and why this recent milestone is such a big deal. Now that we have explained the Science Foundation, I want to bring us back to the person connected to this research, Dr. James Aruda. His research has focused on things like Alzheimer's dementia, mild cognitive impairment, brain activity, and EEG. And that connects directly to what we have been explaining. EEG is a tool that records brain activity. FEEP2 is the brain's response to response after flashes of light. Mild cognitive impairment is the morning light stage where thinking or memory changes can be noticeable, but the person may still be functioning mostly on their own.

Crystal 1:45:04

So his background lines up with the research we have been talking about.

Sarah 1:45:08

It does. And recently his work reached a major milestone connected to a patent. Now I want to explain that word too. A patent is a legal protection for an invention tool or a process. It is basically a way of saying this is a new thing or a new method and it has been officially recognized.

Crystal 1:45:24

So when we say patent, we're not saying Alzheimer's is cured.

Sarah 1:45:27

No, and I want this to be very clear. This is not a cure, this is not a final answer to Alzheimer's. This does not mean that every doctor's office has it tomorrow. This means that the research has moved another step forward, and another step matters. Progress, not miracle. Progress, not miracle. And I actually think that makes it more powerful, not less. Because real science usually does not happen as one giant dramatic moment. It happens as a step. Careful steps, slow steps, steps that may not look exciting to everyone outside of the field, but it matters because it builds the road forward. Science is a staircase, not an elevator. Yes, and this patent milestone is one of those staircase steps. It is a sign that the work has reached an important point, not the end of the road, but a real point in movement.

Crystal 1:46:14

What is the actual tool or platform connected to this?

Sarah 1:46:17

The platform is connected to the FVEP2. That is the brain's response we just explained. In simple terms, this research looks at how quickly the brain responds to brief flashes of light. The person sees the flashes, the brain responds, EEG records the response, researchers measure the timing, and the question is whether the timing can help detect mild cognitive impairment connected to Alzheimer's disease early.

Crystal 1:46:40

And as many times as we went over this, everybody here is going to be efficient on what an EEG does. So you wanted to put that out there, like a body clue.

Sarah 1:46:51

A body clue. And the reason this kind of work is exciting is because it could be more accessible than some other types of testing. Accessibility means easier for people to get or use. Some Alzheimer's related testing can be expensive, hard to access, or invasive. Invasive means something goes inside the body. So the idea of a non-invasive tool matters. Non-invasive means nothing has to be cut open or put inside the body.

Crystal 1:47:13

And that makes a huge difference for people because brain testing already sounds scary. If you can say this is a sensor on the scalp and a flash of light, that feels way less intimidating than a lot of other medical tests, like going inside your like trying to crack you open.

Sarah 1:47:27

Yeah.

Crystal 1:47:28

Because that's what I think.

Sarah 1:47:29

Yeah, right. And I think that matters for early screening because it's a tool easier to access, less invasive, less intimidating. Be more willing to get checked earlier, and earlier is the whole point.

Crystal 1:47:39

Yeah, and earlier gives people time and also it seems less scary.

Sarah 1:47:44

Yeah. Earlier gives people the time to talk to doctors, ask questions, rule out other causes, time to plan, obviously keep the person in the loop and to be able to make their own decisions.

Crystal 1:47:55

And I also want to sit with the fact though, too, that he has been studying this for a long time because that's kind of thing people do not always appreciate.

Sarah 1:48:04

And this is where I really want to give Dr. Aruda his credit. He has been studying this particular brain response for decades. Decades. That is not a quick project. That is not a semester assignment. That is not, I had an idea once and it worked. That is years of staying with one complicated question. And that takes a lot of discipline and brain power, really. It really does. And as a student, that is something I respect very deeply because research could be frustrating. Even when you are only touching one small piece of it, you can spend so much time on a method, so much time on data, so much time trying to understand why something did not work the way you thought it would. So when someone keeps going with the research line for a long time, I think it deserves recognition.

Crystal 1:48:47

Yeah, because people love the word breakthrough, but they do not always love the waiting part.

Sarah 1:48:52

That is so true. People love the exciting part, the headlines, the announcement, the patent, the res possibilities. But research is built on the waiting part, the boring parts, the careful parts, the repeated parts, the try-again parts. The this did not work. So now what part? Yes, and that grit. The grit is not just being excited when something works. Grit is continuing when the answers are not clean, and grit is letting the questions become better over time.

Crystal 1:49:18

And that is such a good way to describe research. Letting the question become better.

Sarah 1:49:22

Because that's what happens. A researcher may start with one question, but the data teaches them where the questions need to be changed. The method teaches them what needs to be tighter. Failures teach them what needs to be improved. That is part of the process.

Crystal 1:49:35

So when we talk about this patent, we are really talking about years of that process.

Sarah 1:49:40

That patent is the milestone. But the years are the story. And I want listeners to understand that because this is not just about a piece of technology, it's about what takes to move a field forward.

Crystal 1:49:52

And that field being Alzheimer's research makes it feel even heavier.

Sarah 1:49:55

It does because Alzheimer's research carries with grief with it, it carries fear, families hope. Hoping for answers, caregivers who are exhausted, and people who are afraid to lose their memory, independence, and identity. So when a researcher spends decades working on a possible early detection tool, kudos to you. Yeah, even if it's not the cure. Even if it's not the cure, especially because it's not the cure. Because we need more than one kind of progress. We need better treatments. We need better support for caregivers. We need better education, screening, ways to tell families that this is happening earlier. All of these things matter.

Crystal 1:50:28

And that is such an important point because sometimes people think it's something, it's not a cure. It does not matter. But screening matters. Planning matters, understanding matters.

Sarah 1:50:38

Yes. A cure would be incredible, but until then, people still need tools. They still need support, information. And doctors need to have a better way to detect changes earlier. And research like this is part of a bigger effort.

Crystal 1:50:49

I also like that you are being careful not to overhype it because overhyping medical research can be harmful.

Sarah 1:50:55

It can. And I really do not want to do that. There's a difference between hype and hope. Hope says this matters and it may help us move forward. Hype says this solves everything. We're not doing the hype. We are doing the honest hope. This episode is not pretending Alzheimer's is solved. It's about recognizing progress and it's about explaining the science in a way people can understand. And it's about giving credit to a researcher who has stayed with a difficult question for a long time. And it's about inviting listeners into the conversation before part two.

Crystal 1:51:23

Because part two is where we want to bring him the questions.

Sarah 1:51:27

Yes. And now that you have the foundation, I think we will be able to better ask questions. Not because you need to know everything, but because they have some basic language now. They know dementia is an umbrella. They know Alzheimer's is one cause that's under that umbrella. They know MCI is a warning light stage, and they know biomarker is a body clue. They know EEG records brain activity, and they know FP2 is the brain's response after a flash of light. They know latency means response time. And that's a lot of learning, but it did not feel impossible. And that's the goal. And I hope it makes people feel less afraid to ask questions. Because if we get to interview Dr. Ruda for part two, which I'm pretty sure we do, I'm just not sure when it's gonna come out because we got to get our schedules together. I do not want listeners to feel like they need to ask perfect academic questions. I want them to ask real questions. Family, caregiver questions, fear questions, basic questions, whatever it is that you feel comfortable asking. Like I want you to ask because these are questions people might actually have that are afraid, they're afraid to ask.

Crystal 1:52:27

Like, how do I know if my parents' forgetfulness is normal?

Sarah 1:52:30

Exactly. And we can always go with all the what-ifs and all that stuff. But I do want to thank you guys for sticking in for this long session. It is a lot. There's a lot that we talked about today and a lot to digest. And that is very true. So, as we finish this, we want to say Alzheimer's is heavy, but learning about it does not have to be impossible. Science can be complicated, but it does not have to be locked away from regular people. And progress can be slow, but slow progress, it still counts. And that feels like a good place to breathe. Because we did cover a lot. And before we fully close, we are going to remind everyone to send in your questions. And thank you in advance for the questions you send in for part two.

Crystal 1:53:11

Because next time we are hoping to bring those questions directly to Dr. Aruda.

Sarah 1:53:15

And hopefully we can keep making a scary topic feel a little easier to understand.

Crystal 1:53:20

As always, be kind to yourselves, be kind to each other.

Sarah 1:53:23

And keep pulling back the curtain on the human mind.

SPEAKER_02 1:53:27

We'll see you next time. Okay. Thank you for listening. Please like and subscribe. Please follow us on social media. I just don't need to. Okay. Make wrong feel beautiful.