Explain how one remains properly hydrated during exercise and why it is important.

Answer:

Drink water before, during, and after exercise, taking regular small drinks and not waiting until you feel very thirsty. For prolonged or vigorous exercise, especially in hot weather, an electrolyte drink may be appropriate. Hydration replaces fluid lost through sweat, helps regulate body temperature, supports circulation and muscle function, and reduces the risk of dehydration and heat-related illness.