Part 3/13:
A significant portion of the discussion revolves around heat therapy via saunas and cold exposure through ice baths. The speaker recounts personal experiments with sauna temperatures reaching 220°F (104°C), highlighting how consistent heat exposure enhances endurance, thermoregulation, and recovery. The principle of stress adaptation is key: exposing the body gradually to higher temperatures or colder environments, such as ice plunges, pushes the system to develop resilience.