A warm-down, or cool down, after exercise is essential to gradually lower the heart rate and promote recovery. It typically includes low-intensity movements followed by stretching, which helps prevent stiffness and enhance flexibility. This practice can reduce the risk of post-exercise muscle soreness and improve circulation, facilitating the removal of metabolic waste from muscles. Additionally, a proper warm-down encourages relaxation and signals the body that the workout has concluded, fostering a smoother transition back to resting state.