The Vagus Nerve: Your Body's Relaxation Switch for a Healthier Heart

This week the Healthy Heart webinar turns to the vagus nerve, the long "wandering" nerve that carries your body's relaxation signal from the brain down to the heart, lungs, gut, and beyond. Dr. Scott Saunders explains why so many of us are stuck in fight-or-flight mode, and how switching on the parasympathetic "rest and repair" side of your nervous system can calm your heart, slow your resting rate, and help your heart heal itself.

Barton COO Jeremy joins live to share his own experiment with a vagus nerve stimulator and an Oura Ring, then Dr. Saunders takes viewer questions on heart rate variability, atrial fibrillation, mitral valve prolapse, warfarin, blocked arteries, and the surprising power of fasting.

In this episode, Dr. Saunders covers:

• What the vagus nerve is, why it is called the "wanderer," and every organ it reaches
• How heart rate variability (HRV) offers a simple window into your stress and longevity
• The best natural ways to stimulate the vagus nerve: breathing, singing, meditation, and more
• Why the parasympathetic "rest and repair" state helps the heart heal, while chronic stress breaks it down
• What mitral valve prolapse is, and the one valve issue you can actually train away with exercise
• The truth about warfarin, vitamin K, bone health, and calcium in your arteries
• Why LDL cholesterol may matter far less than clotting and inflammation
• How Dr. Saunders thinks through options when someone is told they need bypass surgery

Timestamps

• 0:23 — Today's topic: the vagus nerve
• 2:34 — Barton COO Jeremy and his vagus nerve stimulator
• 5:43 — Jeremy's Oura Ring self-experiment
• 6:48 — His overnight HRV jumps from the 40s to 110
• 9:33 — Why a higher HRV means less fight-or-flight
• 14:51 — HRV as a marker: parasympathetic vs sympathetic, and why "vagus" means wanderer
• 17:19 — The top three ways to stimulate the vagus nerve
• 17:39 — Diaphragm breathing, step by step
• 19:38 — Could a stimulator help atrial fibrillation or seizures?
• 21:13 — What mitral valve prolapse is, and how to strengthen it
• 30:10 — Heart disease: why stress breaks the heart down and rest rebuilds it
• 32:10 — Where the vagus nerve sits next to the carotid artery
• 35:49 — A viewer shares blood pressure and blood sugar wins
• 36:43 — Warfarin dosing, side effects, and vitamin K
• 38:42 — Told you need a bypass: how to weigh your options
• 44:41 — Why LDL ranks near the bottom of real heart-risk factors
• 47:26 — Fasting safely, and why it differs for women
• 52:04 — Healthy Heart Support and the nutrients that fuel the heart

Products mentioned in this episode — use code Saunders25 for 25% off:

• HealthyHeart Support+

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