The purpose of a cooldown after an intense workout is to gradually return the body to its resting state. This process helps in reducing heart rate and promoting a smooth transition from high activity to rest. Cooling down can also prevent dizziness or fainting by allowing blood flow to stabilize. Additionally, it aids in the removal of metabolic waste products accumulated during exercise, decreasing soreness. Incorporating light stretching during the cooldown can further enhance flexibility and aid in overall recovery.