Ray Cronise
Former NASA scientist, co-founder of Zero Gravity, known for popularizing mild cold stress for weight loss, and recently completed a 21-day medically supervised water fast. He advocates for dietary restriction without malnutrition and challenges conventional nutritional understanding.
Videos Mentioning Ray Cronise

The Biology of Slowing & Reversing Aging | Dr. David Sinclair
Andrew Huberman
Colleague with whom David Sinclair published 'The Metabolic Winter Hypothesis,' suggesting that being consistently cold can lead to greater energy expenditure and health benefits.

Penn Jillette on Magic, Losing 100+ Pounds, and Weaponizing Kindness | The Tim Ferriss Show
Tim Ferriss
Former NASA scientist, friend of Tim Ferriss, and the architect of Penn Jillette's radical weight loss plan, emphasizing strict dietary rules and thermodynamics. Penn refers to him as 'Cray Ray'.

Ray Cronise on Cold Thermogenesis, Intermittent Fasting, Weight Loss & Healthspan
FoundMyFitness
Former NASA scientist, co-founder of Zero Gravity, known for popularizing mild cold stress for weight loss, and recently completed a 21-day medically supervised water fast. He advocates for dietary restriction without malnutrition and challenges conventional nutritional understanding.

Tim Ferris Vlog: Day 5 & 6 | Tim Ferriss
Tim Ferriss
His success with pendulette (likely referring to weight loss via cold exposure) is praised by the speaker.

Wim Hof Interview (Full Episode) | The Tim Ferriss Show (Podcast)
Tim Ferriss
A mutual friend of Tim Ferriss and Wim Hof, who was influential in Ferriss's research into cold exposure.