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
Listen ad-free on Castria