The primary purpose of a cool-down after exercising is to gradually reduce the body's activity level, allowing the heart rate and blood pressure to return to normal. This process helps prevent dizziness and muscle stiffness by facilitating circulation and promoting the removal of metabolic waste. Including stretching during the cool-down improves flexibility and reduces the risk of injuries. Furthermore, a cool-down can enhance mental relaxation and recovery, aiding in a smoother transition from vigorous activity to rest. Overall, it plays an essential role in post-exercise routines, contributing to long-term performance and health.