"limitless" Shock(2022) Apr 2026

: 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. "Limitless" Shock(2022)

: Chris swims through icy waters without a wetsuit, guided by extreme athlete Ross Edgley . : Chris is joined by his brothers, Liam

Extreme heat (sauna) triggers "heat shock proteins" that fix damaged proteins. Liam and Luke Hemsworth