Cortisol, the effects after exercise.

Cortisol, often dubbed the "stress hormone," plays a complex role in the body's response to exercise. While it's released in response to physical stress, like intense workouts, it serves important functions like regulating energy metabolism and immune response. However, chronically elevated cortisol levels, especially post-exercise, can have negative effects like muscle breakdown and impaired recovery. High cortisol levels may also contribute to increased fat storage, particularly around the abdomen. Thus, while acute cortisol spikes post-exercise are normal and necessary for adaptation, managing stress levels and incorporating recovery strategies like adequate sleep and nutrition can help mitigate its potential negative impact.