Cold water immersion went from niche ritual to wellness status symbol in about five years. But what does putting your body in an ice bath actually accomplish? In this episode, Jeff weighs cold plunge benefits with enthusiasm and skepticism both fully switched on, from the catecholamine surge to brown fat to the Wim Hof method. The cold shock response, the dopamine surge, and why cortisol drops Brown fat, metabolism, and the truth about cold for fat loss The Wim Hof method and what the famous immune study really showed Why a plunge right after lifting can blunt muscle growth How cold affects women's bodies differently, from the Haenyeo divers to estrogen and iron Who should never plunge without medical clearance This episode is for anyone curious about cold plunge benefits, weighing an ice bath habit, or trying to tell the practice apart from the pitch.Referenced in this episode: Dr. Amy Killen, "Oh, The Places You'll Go" (cold water, female strength, and the Haenyeo divers of Jeju): https://dramybkillen.substack.com/p/oh-the-places-youll-go This episode was made possible by: Stripes: Visit ⁠stripesbeauty.com⁠ and use the code COMMUNE20 for 20% off our entire product line. Stemregen: Get 20% off your first order at stemregen.co/commune with the code COMMUNEPOD Vivobarefoot: Try Vivobarefoot risk-free with a 100-day return guarantee, and get 25% off your order at ⁠vivobarefoot.com/commune⁠. LMNT: Get a free 8-count Sample Pack of LMNT’s most popular drink mix flavors with any purchase at ⁠drinklmnt.com/commune⁠.