A cool-down should help your body adjust from exercise to rest. Your application of a cool-down will depend somewhat on the type of exercise you’ve undertaken.
Some weight training workouts will follow a natural cool-down of sorts, as intensity may lesson depending upon the final exercise/s of your workout.
In circumstances where your cardiovascular system has been placed under a greater workload, a cool-down can serve to lower your pulse rate and return blood to your heart, aiding in the dissipation of waste products, such as Lactic Acid.
This page is an extract from the Gym Professor eBook Gym Workouts - Maps to Success.