Limitless with Chris Hemsworth
Chris tries the ultimate anti-aging treatment: a 4-day fast before hunting for his next meal. Not easy for a man used to superhero-sized portions.
Can things that feel bad be good for you? Chris heads to the Arctic with brothers Liam and Luke to test the health benefits of extreme temperatures.
Before attempting the ultimate stress test, Chris learns how to tame his unruly stress response by training with soldiers and firefighters.