: Chris swims through icy waters without a wetsuit, guided by extreme athlete Ross Edgley .
: To prove that stepping out of our "comfort zone" of temperature-controlled environments can reduce the risk of chronic diseases. 🏔️ Key Moments & Cast "Limitless" Shock(2022)
: Chris Hemsworth travels to the Arctic to perform a swim in 36-degree Fahrenheit (2°C) water. : Chris swims through icy waters without a
Extreme heat (sauna) triggers "heat shock proteins" that fix damaged proteins. Liam and Luke Hemsworth
: Chris is joined by his brothers, Liam and Luke Hemsworth , who participate in the cold-water challenges and provide comedic relief.