Hydration plays a vital role in regulating body temperature during exercise. When we exercise, the body generates heat, and sweating becomes essential for cooling down. Sufficient fluid intake ensures that sweat can be produced effectively, helping to transfer heat away from the body. Dehydration impairs this process, potentially leading to overheating, decreased performance, and increased fatigue. Maintaining proper hydration levels supports optimal body function, stamina, and overall physical performance during workouts.