Full show notes: https://bengreenfieldlife.com/signalspodcast In this episode with Tom Moss, founder and CEO of Vital Signals, you'll hear how a near-fatal hypertensive crisis during a family vacation became the founding moment for a device that may finally solve the problem of getting accurate blood pressure readings in real life without a cuff. Tom explains why blood pressure is the single most important indicator of long-term cardiovascular health and yet one of the least accurately measured, what the cuff gets wrong, and how Vital Signals achieved the scientific breakthrough that other companies failed to crack: accurate, calibration-free blood pressure monitoring from a ring. You'll also hear about the interplay between sleep, stress, hormones, sauna, cold, and blood pressure, what the Signal Ring's data is already revealing about human arterial health, and where this technology could go over the next decade. Tom Moss is the founder and CEO of Vital Signals, building at the intersection of heart health, technology, and everyday behavior. After his experience with undiagnosed hypertension, he became focused on why some of the most critical health signals remain so difficult and often stressful to understand. Pre-order your Signal Ring from LIFE Market and measure your blood pressure without the cuff. Ships October 2026. https://shoplifemarket.com/products/signal-ring Timestamps: 02:35 The hypertensive crisis that led to founding Vital Signals 05:13 Why blood pressure is still measured with 150-year-old cuff technology 10:39 Why arterial health is the ultimate determinant of lifespan 13:51 Why sugar may be a bigger driver of hypertension than sodium 18:28 Why blood pressure readings without context aren't useful 25:34 How the Signal Ring measures blood pressure 27:27 The scientific breakthrough that made calibration-free measurement possible 30:29 What the Signal Ring will eventually be able to measure 40:57 The concurrent training study for blood pressure 45:00 Tom's own daily protocol for managing his hypertension 52:43 Why menopause creates a cardiovascular cliff for women 55:31 When the Signal Ring launches and how to get one Shop My Curated Marketplace of Vetted Products! - https://shoplifemarket.com Sign up for a FREE Coaching Call! - https://jointriumphcoaching.com Check out my FREE newsletter! - https://bengreenfieldlife.com/newsletter/ 🔗My Website: https://bengreenfieldlife.com/ 🔗My Podcast: https://bengreenfieldlife.com/podcast/ 🔗My Books: https://shopbengreenfieldlife.com/collections/books Connect with me: ⬇️ Instagram https://www.instagram.com/bengreenfieldfitness/ Facebook https://www.facebook.com/BGFitness X https://twitter.com/bengreenfield TikTok https://www.tiktok.com/@bengreenfield