The purpose of cool-down exercises is to gradually bring the body back to its resting state after physical activity. These exercises help lower heart rate and blood pressure, prevent dizziness, and reduce the likelihood of muscle soreness by promoting circulation. Incorporating stretching into a cool-down can improve flexibility and aid in muscle recovery. Overall, a proper cool-down is essential in any fitness routine, as it enhances overall recovery and prepares the body for future workouts, contributing to long-term fitness success.