When his PSA spiked—a warning sign of prostate inflammation and potential cancer—Dr. Thomas Seager didn’t follow the conventional treatment. Instead, he opted for a more radical approach. He began a daily cold plunge protocol, paired with deep ketosis and targeted mitochondrial support. The result? His markers normalized—and what began as a personal experiment evolved into a deeper exploration of how cold exposure influences hormone health, fertility, and metabolic function in both men and women. As the research deepened, intriguing sex-specific differences began to emerge: men need to rewarm after cold exposure for testosterone levels to rise, while women experience an almost immediate surge in mood, energy, and even affection. In this episode, Dr. Seager—engineer-turned-ice-bath-pioneer—shares how these discoveries led to the creation of the world’s first self-freezing plunge that now sits on my own patio: the Morozko Forge. Here’s what you’ll learn: -How cold plunges build new mitochondria—especially in brown fat -How cold exposure affects testosterone, libido, fertility, and erectile function -What the science really says about Raynaud’s, adrenal fatigue, and cold exposure risks -Why cold works differently for men and women, and how to tailor your protocol - Why babies may be biologically wired for water birth Full show notes: https://bengreenfieldlife.com/uncommon Additional Resources: Ben Greenfield Life Website: https://bengreenfieldlife.com/ Ben Greenfield Life Podcast: https://bengreenfieldlife.com/podcast/ Ben Greenfield Books: https://shopbengreenfieldlife.com/collections/books Instagram https://www.instagram.com/bengreenfieldfitness/ Facebook https://www.facebook.com/BGFitness X https://twitter.com/bengreenfield TikTok https://www.tiktok.com/@bengreenfield