Why Drink Water? How Water and Health Are Connected
7 health reasons to hydrate: Find out how water impacts your health and your body, from water and skin to water and heart.
Your body releases heat by expanding blood vessels close to the skin’s surface (this is why your face gets red during exercise), resulting in more blood flow and more heat dissipated into the air. When you’re dehydrated, however, it takes a higher environmental temperature to trigger blood vessels to widen, so you stay hotter.Next: How Being Hydrated Affects Your Limbs »