Boundless Life Boundless Life

Why Do We Still Use 150-Year-Old Technology To Measure the #1 Killer of Humans Worldwide? The New Approach To Blood Pressure Measurement With Tom Moss.

Jul 18, 2026 · 1h 2m

Summary

Ben Greenfield interviews Tom Moss, CEO of Vital Signs, about the Signal Ring, a wearable that measures blood pressure without cuff calibration. Moss shares his near-fatal hypertensive emergency and explains how aging, arterial stiffness, and lifestyle factors impact cardiovascular health. The episode highlights the ring’s ability to provide continuous, accurate readings, offering deeper insights into nocturnal hypertension and real-time physiological responses to stress, diet, and exercise.

Topics discussed

Intro, sponsors, and podcast tour announcement Introduction to Tom and the Signal Ring Tom's personal health crisis and motivation Limitations of traditional blood pressure cuffs Arterial health, aging, and blood pressure mechanics Dietary impacts: Sodium, sugar, and electrolytes Lifestyle factors: Coffee, exercise, and stress Circadian rhythms and morning blood pressure spikes Signal Ring technology and cuff-less accuracy Future features: Arterial stiffness and predictive health Sponsor segment: Relationship retreat Natural ways to lower blood pressure Tom's personal routine: Sauna and cold plunges Family history and genetic risk factors Blood pressure changes in women and menopause Product availability, sizing, and conclusion
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