The 5th Vital Sign: Airway

 Why Medical & Dental Providers Must Lead the Sleep & Breathing Revolution

In this powerful, science-driven episode, Lancette reveals the silent epidemic hiding in plain sight: undiagnosed mouth breathing and sleep-disordered breathing. With up to 1 billion people worldwide affected by sleep apnea—and 80–90% undiagnosed—healthcare can no longer afford to ignore the airway.

Lancette breaks down the physiology of mouth breathing, why sleep apnea destroys health, how airway dysfunction impacts every body system, and why airway must be recognized and screened as the fifth vital sign.

She issues a compelling challenge to all medical and dental providers:
 Screen every airway. Every patient. Every visit.
Because prevention is powerful—and early detection saves lives.

⏱️ TIMESTAMPS & KEY TOPICS

00:00 – Introduction: Why the Airway Matters More Than Ever

A reminder that breathing and sleep are the foundations of health—and the most overlooked.

01:00 – The Silent Airway Crisis

Staggering data on sleep apnea prevalence and underdiagnosis.
 Why mouth breathing in children alters development and sets the stage for chronic disease.

04:00 – The Science of Mouth Breathing

How nitric oxide production, oral microbiome balance, immune function, and nervous system regulation depend on nasal breathing.
 Why mouth breathing leads to sympathetic overload, poor sleep quality, inflammation, and oral-systemic disease.

08:00 – ✨ Airway as the Fifth Vital Sign

Why traditional vital signs miss the whole story.
 How oxygenation, airway stability, and sleep architecture influence every other vital sign.
 Why airway is the most important measurement we aren’t documenting.

11:00 – Why Providers Are Missing This

Silos, lack of training, and symptom-based care keep airway disorders invisible.

13:00 – What Screening Looks Like in Medical & Dental Settings

Simple, fast, evidence-based screening tools and observations.
 What to look for in adults and children.

15:00 – Inspiration + Call to Action

A powerful message to the prevention providers of the world:
 Airway is our responsibility. Screening saves lives.
 Together, we can make waves in healthcare.

🧠 KEY TAKEAWAYS

• Mouth breathing is not harmless—it is a sign of dysfunction affecting whole-body health.
• Sleep apnea is a global epidemic, deeply underdiagnosed and widely misunderstood.
• Nitric oxide, craniofacial development, blood pressure, glucose regulation, and mental health are all impacted by how we breathe.
• Airway IS the fifth vital sign and should be documented as routinely as heart rate or blood pressure.
• Dental and medical providers have an opportunity—and responsibility—to lead early detection.
• Screening takes seconds but can save a lifetime of suffering.

📌 CALL TO ACTION

For Healthcare Providers:
✔️ Screen every patient for mouth breathing and sleep-disordered breathing.
✔️ Observe airway anatomy and behavior during routine exams.
✔️ Use validated screening tools (STOP-Bang, Epworth, SleepImage, pediatric questionnaires).
✔️ Refer patients for proper sleep testing—don’t guess.
✔️ Treat airway as a vital sign, not an afterthought.

For Listeners:
✔️ If you or someone you love snores, mouth breathes, grinds teeth, wakes tired, or str