Episode 325: The Uncommon Science of Cold: Brown Fat, Resilience & Recovery with Dr. Thomas Seager

Welcome back to the Flex Diet Podcast. I'm Dr. Mike T. Nelson, and today I’m diving into the frigid but fascinating world of cold water immersion with Dr. Thomas P. Seeger — a true pioneer in sustainable engineering and a leading voice on cold exposure.

We break down the latest science behind cold plunges, including how they impact brown fat, metabolism, HRV, testosterone and overall resilience. Tom also shares key takeaways from his excellent book Uncommon Cold, and gives us a peek into the thinking behind his company, Morozko Forge — makers of some seriously high-tech cold tubs.

We even get into my own experiences with cold immersion, what’s hype and what’s helpful, and how to safely integrate it into your routine for health and performance gains.

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Episode Chapters:

• 05:09 Welcome Dr. Tom: Cold Plunge Setup
• 06:20 The Science Behind Cold Plunges
• 07:13 Physiological Responses to Cold Exposure
• 17:00 Brown Fat and Metabolic Health
• 26:48 Psychological Resilience and Cold Exposure
• 49:12 Heart Rate Variability and Cold Immersion
• 52:43 Starting a Cold Water Immersion Routine
• 55:53 Psychological Tricks and Cold Exposure
• 56:29 Individual Differences in Cold Tolerance
• 57:43 Optimal Time and Temperature: A Myth
• 58:07 Cold Training vs. Medical Fallacies
• 01:02:33 Testosterone and Cold Exposure
• 01:05:59 The Uncommon Testosterone Book
• 01:11:53 TRT and Natural Alternatives
• 01:19:37 Personal Experiences and Recommendations
• 01:26:07 Morozko Forge: The Ultimate Ice Bath
• 01:34:47 Final Thoughts and Recommendations 

Flex Diet Podcast Episodes You May Enjoy: 

• Episode 202: Cold water immersion and the body’s regulation systems: An interview with Dr. Dwayne Jackson 
• Episode 114: How To Be More Robust and Antifragile with Cold Water Immersion and Sauna: The Barbell Model of Phys Flex

Connect with Dr Seager: 

• Instagram: https://www.instagram.com/seagertp
• Morozko Forge: https://www.morozkoforge.com/
• Uncommon Cold: https://www.morozkoforge.com/post/uncommon-cold-book

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• Instagram: https://www.instagram.com/drmiketnelson/
• YouTube: https://www.youtube.com/channel/UCn1aTbQqHglfNrENPm0GTpg

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