What describes a cool down in physical activity?

A cool down in physical activity is best described as a low-level activity that helps bring the body back to a resting state after more intense exercise. This phase is crucial as it allows heart rate and blood pressure to gradually return to their normal levels, reducing the risk of dizziness or discomfort that might result from suddenly stopping intense physical activity. Engaging in low-level activities, such as light walking or gentle movements, aids in the removal of lactic acid and other metabolic waste produced during intense exercise, promoting better recovery and preventing injury.

While stretching routines can be part of a cool down, they are not the entirety of it, and a high-intensity exercise or interval training session would be inappropriate, as they do not facilitate the recovery process.