Knife Down
"Knife Down" is what a surgeon says in the OR when she puts her scalpel down so no one gets hurt — and it’s the mission here: put the knife down, long before anyone needs to use it.
Knife Down is a podcast about how to actually invest in your health so you can live longer, stronger, and with less time in doctors’ offices. The core focus is the world’s leading cause of death—cardiovascular disease—and what to do about it before it shows up as a catastrophe.
Hosted by a vascular surgeon on a mission to put herself out of business, the show translates cutting-edge science on prevention, metabolic health, and longevity into real-world strategies you can use in clinic or at your kitchen table. Expect evidence, nuance, and zero wellness hype—plus the occasional dark joke about the state of modern medicine.
Knife Down
ChatGPT’s Medical Reply - Vascular Surgeon Fact Check!
Use Left/Right to seek, Home/End to jump to start or end. Hold shift to jump forward or backward.
A subscriber asked about statins—so I made ChatGPT answer first… and then I fact-checked it as a vascular surgeon. We’re talking cholesterol, LDL, ApoB, plaque growth and plaque rupture, and what “prevention” actually means when the goal is avoiding the first heart attack (or the next one). We’ll cover when statins make sense, when they’re oversold, and why “my numbers are fine” doesn’t always mean your arteries are fine. This is AI in healthcare with a reality check.
For my more complete philosophy on the role of lipoproteins in plaque, please watch THIS video: https://youtu.be/ZR1tI0egcmI
Sign up for more information on my own practice here: https://corsighthealth.com/
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🧬 About Dr. Lily Johnston
Dr. Johnston is a double board-certified vascular and general surgeon in San Diego, specializing in metabolic and cardiovascular prevention. She’s the founder of CorSight Health and a passionate advocate for reimagining how medicine approaches chronic disease.
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