What are the key takeaways from this The Minimalists Podcast episode?

Key insights include: **Cold exposure protocol:** Begin with water cold enough to trigger a gasp reflex, stay long enough to feel the urge to shiver. First thirty seconds activate sympathetic nervous system, then parasympathetic takes over. Two to three minutes at 33 degrees Fahrenheit provides sufficient benefit without excessive time commitment for experienced practitioners.; **Vitamin D and autoimmune connection:** Every autoimmune disorder correlates with dysregulated vitamin D metabolism. Cold thermogenesis activates mitochondria to produce biophotons including UVB light inside brown fat cells, converting cholesterol to pre-vitamin D. Polish study showed women with multiple sclerosis experienced blood serum vitamin D spikes after cryotherapy, unlike healthy controls.; **Brown fat recruitment:** Daily cold exposure for two weeks recruits new brown fat tissue containing mitochondria responsible for thermogenesis. Brown fat burns energy while white fat stores it. Urban dwellers in climate-controlled environments lack brown fat development, contributing to metabolic dysfunction and vitamin D deficiency regardless of geographic location.

What did TK Coleman and Thomas Seager discuss on The Minimalists Podcast?

Joshua Fields Milburn and TK Coleman interview Dr. Thomas Seager about cold plunge therapy, chronic illness management, and metabolic resilience. Discussion covers grounding, vitamin D metabolism, autoimmune disorders, and practical cold exposure protocols. Key topics include: **Cold exposure protocol:** Begin with water cold enough to trigger a gasp reflex, stay long enough to feel the urge to shiver. First thirty seconds activate sympathetic nervous system, then parasympathetic takes over. Two to three minutes at 33 degrees Fahrenheit provides sufficient benefit without excessive time commitment for experienced practitioners.; **Vitamin D and autoimmune connection:** Every autoimmune disorder correlates with dysregulated vitamin D metabolism. Cold thermogenesis activates mitochondria to produce biophotons including UVB light inside brown fat cells, converting cholesterol to pre-vitamin D. Polish study showed women with multiple sclerosis experienced blood serum vitamin D spikes after cryotherapy, unlike healthy controls..

How long is this episode of The Minimalists Podcast?

This episode is 62 minutes long. SignalCast provides an AI-generated summary so you can get the key insights in about 3 minutes.

The Minimalists Podcast

520 | Uncommon Cold

December 29, 2025

62 min episode · 2 min read

TK Coleman,Thomas Seager

Episode

62 min

Read time

2 min

Topics

Career Growth, Health & Wellness, Leadership

AI-Generated Summary

Published Dec 29, 2025

Key Takeaways

✓Cold exposure protocol: Begin with water cold enough to trigger a gasp reflex, stay long enough to feel the urge to shiver. First thirty seconds activate sympathetic nervous system, then parasympathetic takes over. Two to three minutes at 33 degrees Fahrenheit provides sufficient benefit without excessive time commitment for experienced practitioners.
✓Vitamin D and autoimmune connection: Every autoimmune disorder correlates with dysregulated vitamin D metabolism. Cold thermogenesis activates mitochondria to produce biophotons including UVB light inside brown fat cells, converting cholesterol to pre-vitamin D. Polish study showed women with multiple sclerosis experienced blood serum vitamin D spikes after cryotherapy, unlike healthy controls.
✓Brown fat recruitment: Daily cold exposure for two weeks recruits new brown fat tissue containing mitochondria responsible for thermogenesis. Brown fat burns energy while white fat stores it. Urban dwellers in climate-controlled environments lack brown fat development, contributing to metabolic dysfunction and vitamin D deficiency regardless of geographic location.
✓Resistance wall technique: The hardest part of difficult activities occurs before starting, not during execution. Bargain with yourself to do minimal effort today while giving permission to skip tomorrow. This psychological trick bypasses resistance without requiring tomorrow's avoidance. Apply to writing, exercise, or any challenging habit formation.
✓Pain as obsolete protection: Chronic pain may protect against childhood fears no longer relevant to adult circumstances. Examine what the pain protects you from. Anticipatory anxiety often stems from outdated survival mechanisms. Processing these origins through deliberate discomfort like cold exposure retrains nervous system responses to perceived threats.

What It Covers

Joshua Fields Milburn and TK Coleman interview Dr. Thomas Seager about cold plunge therapy, chronic illness management, and metabolic resilience. Discussion covers grounding, vitamin D metabolism, autoimmune disorders, and practical cold exposure protocols.

Key Questions Answered

•Cold exposure protocol: Begin with water cold enough to trigger a gasp reflex, stay long enough to feel the urge to shiver. First thirty seconds activate sympathetic nervous system, then parasympathetic takes over. Two to three minutes at 33 degrees Fahrenheit provides sufficient benefit without excessive time commitment for experienced practitioners.
•Vitamin D and autoimmune connection: Every autoimmune disorder correlates with dysregulated vitamin D metabolism. Cold thermogenesis activates mitochondria to produce biophotons including UVB light inside brown fat cells, converting cholesterol to pre-vitamin D. Polish study showed women with multiple sclerosis experienced blood serum vitamin D spikes after cryotherapy, unlike healthy controls.
•Brown fat recruitment: Daily cold exposure for two weeks recruits new brown fat tissue containing mitochondria responsible for thermogenesis. Brown fat burns energy while white fat stores it. Urban dwellers in climate-controlled environments lack brown fat development, contributing to metabolic dysfunction and vitamin D deficiency regardless of geographic location.
•Resistance wall technique: The hardest part of difficult activities occurs before starting, not during execution. Bargain with yourself to do minimal effort today while giving permission to skip tomorrow. This psychological trick bypasses resistance without requiring tomorrow's avoidance. Apply to writing, exercise, or any challenging habit formation.
•Pain as obsolete protection: Chronic pain may protect against childhood fears no longer relevant to adult circumstances. Examine what the pain protects you from. Anticipatory anxiety often stems from outdated survival mechanisms. Processing these origins through deliberate discomfort like cold exposure retrains nervous system responses to perceived threats.

Notable Moment

Seager shares how his crippling social anxiety prevented international travel until he realized the pain protected his eight-year-old self from inner-city childhood dangers. Recognizing this obsolete protection mechanism allowed him to overcome career-limiting fears and accept speaking invitations worldwide.

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Episode Transcript

Every little thing you think that you need Every little thing you think that you need Every little thing that's just feeding your greed. Oh, I bet that you'll be fine without it. Yes. Welcome to The Minimalist Podcast, where we discuss what it means to live a meaningful life with less. My name is Joshua Fields Milburn, and joining me here at Earthing Studios in beautiful West Hollywood, California is my good friend, TK Coleman. I've got a book in my hand. I'm a happy man. That's always the truth with him. Well, joining us here in the studio today, we have a very special guest. He is a professor at the School of Sustainable Engineering at Arizona State University. He is also the founder of Morozco Forge and is an expert in the expert in the use of cold thermogenesis for building metabolic and physiological resilience. His latest book is titled Uncommon Cold. I'll hold it up here. Please welcome to the show our new friend, doctor Thomas Seager. Good to have you. Come on. The podcast, I'll give you an applause. Right? It's it's got a studio audience of, like, two here. You think my engineering students ever applaud? I'm like, that was great lecture. Right? You just tell them their grade depends on it, right? I'm gonna try that next semester. Yeah. It's like A's all around. Please clap. We should try that at our live events, TK, where it's like, you'll be great at the end of this based on the sound of your applause. No, no, that's a type of prison, isn't it? Like, needing applause. Getting applause feels good, but as soon as I need it, it's like, oh, yuck. Well, anyway, we got a lot to talk about today. Coming up in this episode, we're talking about living a productive life with chronic illness, especially when you're struggling. All the struggles we deal with. If we or a loved one is dealing with some sort of chronic illness or pain, we're gonna talk a bit about that. Also, we're gonna talk about some uncomfortable activities that get easier over time and why ice baths have become a new trend and much, much more. Plus, on page two, I personally have 15 important questions I'd like to ask about cold plunge therapy for doctor Seeger. So quick health disclaimer, none of this should be perceived as medical advice. I'm certainly not a medical doctor, so please consult your physician or yoga instructor or local mechanic or Uber driver before making any health changes on your front. But, seriously, this is not medical advice, but we're going to have some observations around some things I've dealt with personally and some of the stories that, Tom has dealt with as well over the years. And so let's get right into it. Let's start with our callers. If you have a question for our show, we'd love to hear from you. Give us a call. Our …

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