What is the purpose of a cool-down period after a workout?

The correct purpose of a cool-down period after a workout is primarily to allow the circulatory system to return to normal. During exercise, the heart rate and blood pressure increase significantly to supply muscles with the oxygen and nutrients they need. A cool-down helps the body gradually transition back to its resting state, promoting a slow decrease in heart rate and blood flow. This gradual adjustment helps prevent dizziness and fainting, which can happen if a person stops exercising abruptly. Additionally, cooling down can aid in the removal of metabolic waste products, like lactic acid, from the muscles, which can reduce muscle soreness and stiffness after intense exercise.

Transitioning too quickly to rest can lead to cardiovascular strain, while efforts to increase calorie burn or induce fatigue do not align with the physiological benefits intended during a cool-down.