The Science Behind Exercise Fatigue: How Your Brain Protects You

The video explains that the pain experienced during exercise is not due to muscle fatigue but rather a self-preservation mechanism in the brain. Researchers from South Africa have identified a chemical called interleukin 6, which signals the brain to stop exertion to prevent muscle damage. This mechanism helps protect the body by encouraging rest before harm occurs.

What new insight or understanding did you gain from this video?