The Nerve in Your Ear That Controls Stress | Jane Ollis (Sona)

What if a single nerve in your ear could shift you out of fight-or-flight in 10 minutes? Jane Ollis explains why your vagus nerve and HRV may be the most overlooked levers for stress, sleep, and longevity. In this episode of Health Longevity Secrets, Robert Lufkin MD sits down with Jane Ollis — founder and CEO of Sona, medical biochemist with a career across NASA, Oxford, and the NHS — to unpack the science of the vagus nerve, heart rate variability (HRV), and the autonomic nervous system. Jane breaks down why HRV is one of the strongest predictors of all-cause mortality, why a tiny patch of "fish gill pipework" in your outer ear is the key to calm, and how Sona's AI-powered closed-loop vagus nerve stimulator personalizes a 10-minute daily protocol to retrain a nervous system stuck in chronic sympathetic overdrive. CHAPTERS: 00:00 — Introduction 01:01 — Meet Jane Ollis: From NASA and Oxford to Vagus Nerve Science 03:05 — Why Chronic Stress Drives Inflammation, Insulin Resistance and Disease 05:07 — Sympathetic vs Parasympathetic: The Two Arms of Your Autonomic Nervous System 08:09 — The Hidden Benefit of Stress (And Why You Still Need Recovery) 11:13 — Cortisol, Adrenaline and How the Stress Response Actually Works 12:14 — Acetylcholine, Repair Mode and the Parasympathetic Switch 14:19 — Symptoms of Autonomic Imbalance and Sympathetic Overdrive 17:22 — Heart Rate Variability: Why It Predicts All-Cause Mortality 20:27 — HRV, Aging, Blood Pressure and the Baroreceptor Connection 23:29 — Anatomy of the Vagus Nerve: The Body's Communication Superhighway 26:33 — Free Vagus Nerve Hacks: Slow Breathing, Humming and Chanting 28:35 — How Vagus Nerve Stimulation Works (Cervical vs Auricular Branch) 30:37 — From Epilepsy to Depression: 30 Years of Implanted VNS Research 32:40 — Inside Sona: The First AI-Powered Closed-Loop Vagus Nerve Stimulator 35:44 — How to Use Sona: 10-Minute Daily Sleep Ritual and Neuroplasticity Stack 38:46 — Sleep Quality, Deep Sleep and Stroke Rehab: What the VNS Evidence Shows 40:49 — The Future: Personalized VNS for Anxiety, PTSD, Long COVID and Metabolic Disease 42:52 — The Biggest Myth About Stress, Recovery and Resilience 45:00 — Final Takeaway: One Small Action to Calm Your Nervous System Today KEY TAKEAWAYS: Higher heart rate variability (HRV) is one of the strongest non-invasive predictors of all-cause and cardiovascular mortality. The parasympathetic nervous system isn't about "switching off" — it switches on repair, digestion, and immune housekeeping via acetylcholine. 80% of vagus nerve fibers carry information from the body to the brain — it's a communication highway, not just an output. The auricular branch of the vagus nerve in the outer ear (cymba conchae) is a 100% afferent vagal pathway. Slow-paced breathing with a long nasal exhale, humming, and chanting are zero-cost vagal activation tools that raise HRV. Closed-loop, AI-personalized vagal stimulation may unlock applications in anxiety, depression, PTSD, long COVID, and metabolic disease. STUDIES & SOURCES: Sammito et al., 2022 — HRV as a predictor of all-cause mortality: https://pubmed.ncbi.nlm.nih.gov/36243195/ Wang et al., 2023 — taVNS in depression meta-analysis: https://pubmed.ncbi.nlm.nih.gov/37230264/ Wu et al., 2018 — taVNS for depression: Frontiers in Psychiatry taVNS for insomnia (PSQI): ⭐ Enjoying the show? Please leave a 5-star review on Apple Podcasts — it takes 30 seconds and helps more people discover the science of health and longevity. Thank you!New episodes every other Tuesday. Subscribe so you don't miss one.Continue this conversation on Substack: https://robertlufkinmd.substack.comLies I Taught In Medical School — Free sample chapter: https://www.robertlufkinmd.com/lies/Web: https://www.robertlufkinmd.comYouTube: https://www.youtube.com/robertlufkinmdX: https://x.com/robertlufkinmdInstagram: https://www.instagram.com/robertlufkinmd/TikTok: https://www.tiktok.com/@robertlufkinLinkedIn: https://www.linkedin.com/in/robertlufkinmd/