New: The State of Fitness, Q2 2026. Get the free report

Topics

Longevity and Science

Thinking about living well for longer can raise questions that feel both personal and scientific. These conversations explore what longevity means beyond a number, from everyday movement and social connection to sleep research and measurements of organ aging. David Stewart considers how fitness, resilience, and accessible habits fit into a fuller human experience. Dr. Nicole Moyen discusses temperature regulation, menopause, and the questions researchers are asking about sleep quality. Paul Coletta introduces proteomics and explores how biological measurements might guide action and track responses. Along the way, the discussions ask what health data can tell us, what remains uncertain, and how to distinguish useful information from the appeal of optimization. There is room here for curiosity about everyday life too.

Start here

Latest conversations

David Stewart of Super Age at 67 and 11.4% Body Fat: What Real Longevity Looks Like46 min

longevity

David Stewart of Super Age at 67 and 11.4% Body Fat: What Real Longevity Looks Like

David Stewart

Dr. Nicole Moyen (Eight Sleep) on Temperature, Women's Sleep, and Menopause46 min

longevity

Dr. Nicole Moyen (Eight Sleep) on Temperature, Women's Sleep, and Menopause

Dr. Nicole Moyen

Dr. Heather McKee, PhD Behavioral Scientist, on Habit Formation and Fitness Motivation50 min

longevity

Dr. Heather McKee, PhD Behavioral Scientist, on Habit Formation and Fitness Motivation

Dr. Heather McKee

The New Science of Aging: Why Your Organs Age at Different Rates with Paul Coletta45 min

longevity

The New Science of Aging: Why Your Organs Age at Different Rates with Paul Coletta

Paul Coletta

The Assembly Founder Jon Ward on GLP-1s, Deal Flow and Fitness's Future46 min

capital

The Assembly Founder Jon Ward on GLP-1s, Deal Flow and Fitness's Future

Jon Ward

Why Your Gut Renews Every 5 Days  -  and What That Means for Aging, with Christian Drapeau34 min

longevity

Why Your Gut Renews Every 5 Days - and What That Means for Aging, with Christian Drapeau

WellnessSpace Brands' Paul Lunter on Cold Plunges, Red Light Saunas, and the Business of Recovery45 min

capital

WellnessSpace Brands' Paul Lunter on Cold Plunges, Red Light Saunas, and the Business of Recovery

Paul Lunter

Christian Drapeau: The Stem Cell Science Behind Bone Loss, Muscle Aging & Menopause22 min

longevity

Christian Drapeau: The Stem Cell Science Behind Bone Loss, Muscle Aging & Menopause

Christian Drapeau

Planet Fitness, UFIT & Orange Theory Insider JJ Creegan on What's Really Working in Fitness Right Now42 min

operators

Planet Fitness, UFIT & Orange Theory Insider JJ Creegan on What's Really Working in Fitness Right Now

Planet Fitness

Cody McBroom on Building a 7-Figure Coaching Business With Zero Ads42 min

operators

Cody McBroom on Building a 7-Figure Coaching Business With Zero Ads

Cody McBroom

Christian Drapeau: The Science of Vitality After 4024 min

longevity

Christian Drapeau: The Science of Vitality After 40

Christian Drapeau

Dr. Gloria Winters - How the YMCA Is Merging Medicine and Fitness48 min

tech

Dr. Gloria Winters - How the YMCA Is Merging Medicine and Fitness

Dr. Gloria Winters

Christian Drapeau - A Neuroscientist on the Longevity Marker Nobody Is Measuring37 min

longevity

Christian Drapeau - A Neuroscientist on the Longevity Marker Nobody Is Measuring

Christian Drapeau

Joel Smith - Beyond Longevity: Aging Athletically vs Just Living Longer45 min

longevity

Joel Smith - Beyond Longevity: Aging Athletically vs Just Living Longer

Joel Smith

Dr. Tania Elliott - What If Fitness IS the New Primary Care? And What If That's a Good Thing?45 min

longevity

Dr. Tania Elliott - What If Fitness IS the New Primary Care? And What If That's a Good Thing?

Dr. Tania Elliott

Erik Jivmark - Sleep Cycle: 85 Million Downloads, 15 Years of Data, Zero Wearables48 min

tech

Erik Jivmark - Sleep Cycle: 85 Million Downloads, 15 Years of Data, Zero Wearables

Erik Jivmark

Eric Casaburi - From Serotonin Centers to 108,000 Gyms: Solving Longevity's Distribution Problem46 min

longevity

Eric Casaburi - From Serotonin Centers to 108,000 Gyms: Solving Longevity's Distribution Problem

Eric Casaburi

Eric Cressey - 110 MPH Fastballs, Youth Specialization, and Cutting Through YouTube Garbage54 min

longevity

Eric Cressey - 110 MPH Fastballs, Youth Specialization, and Cutting Through YouTube Garbage

Eric Cressey

Women's Health Series - Groe Solutions: Dr. Jennifer King, PhD, MPH - The Forgotten Population32 min

longevity

Women's Health Series - Groe Solutions: Dr. Jennifer King, PhD, MPH - The Forgotten Population

Women's Health Series

Women's Health Series - Groe Solutions:  Amy Bantham, DrPH - From Playground to Silver Years34 min

longevity

Women's Health Series - Groe Solutions: Amy Bantham, DrPH - From Playground to Silver Years

Women's Health Series

Women's Health Series - Groe Solutions: Anaelle Oiknine  - The Research Revolution34 min

longevity

Women's Health Series - Groe Solutions: Anaelle Oiknine - The Research Revolution

Women's Health Series

Dave Appel - A Tsunami Is Coming: What Gym Owners Need to Know About Peptide Deregulation58 min

longevity

Dave Appel - A Tsunami Is Coming: What Gym Owners Need to Know About Peptide Deregulation

Dave Appel

Marco Benitez - Mining Gold from 300+ Wearables: How ROOK Unifies Scattered Data52 min

tech

Marco Benitez - Mining Gold from 300+ Wearables: How ROOK Unifies Scattered Data

Marco Benitez

Anna Emanuel MD - Medicine 4.0: Next Health's Dr. Anna Emanuel on the Future of Preventative Care53 min

longevity

Anna Emanuel MD - Medicine 4.0: Next Health's Dr. Anna Emanuel on the Future of Preventative Care

Anna Emanuel MD

Voices in the conversation

From the conversations

What outcome does David Stewart target in his training approach?

“I think that the difference here is that it's we're looking at the target is resilience. So durable capacity and if you're gonna talk about that then you sort of bring some other elements in here.”

David Stewart of Super Age at 67 and 11.4% Body Fat: What Real Longevity Looks Like · 28:06 ↗

Do researchers know exactly why people wake around 2:30 or 3 a.m.?

“The short answer is I don't think we have a clear understanding of exactly what causes that wake up. Um there's not one single answer, I should say.”

Dr. Nicole Moyen (Eight Sleep) on Temperature, Women's Sleep, and Menopause · 0:09 ↗

What does Paul Coletta mean by a closed loop health system?

“Bridging health insights or health data to targeted action. It needs to be actionable. And then here's the big part measuring the response, a validated health outcome. That's the closed loop system.”

The New Science of Aging: Why Your Organs Age at Different Rates with Paul Coletta · 12:17 ↗

THE FUTURE OF FITNESS NEWSLETTER

What I’m paying attention to.

Every week, I talk with founders, operators, investors and scientists across fitness, health and wellness, then share the ideas that stayed with me, the shifts worth watching and what they could mean for the industry.

Free, every week, plus our quarterly State of Fitness report. Leave anytime.