Extreme heat (sauna) triggers "heat shock proteins" that fix damaged proteins.
: Dr. Peter Attia , a longevity specialist, explains the biological "shock" and how it helps future-proof the body. 💡 Health Takeaways Immune Boost Cold exposure can increase white blood cell counts. Cellular Repair
: Chris is joined by his brothers, Liam and Luke Hemsworth , who participate in the cold-water challenges and provide comedic relief.
: Chris Hemsworth travels to the Arctic to perform a swim in 36-degree Fahrenheit (2°C) water.
: Chris swims through icy waters without a wetsuit, guided by extreme athlete Ross Edgley .
