The role of a cool-down in an exercise session is crucial for promoting recovery. A proper cool-down helps gradually lower the heart rate, reducing the risk of dizziness and injury. It also aids in flushing out metabolic waste and facilitates the transition to a resting state. Incorporating stretching during this phase can improve flexibility and prevent post-exercise soreness. Ultimately, cooling down contributes to overall exercise effectiveness and prepares the body for future workouts.