Very few people actually need two liters of water a day. But how much do they really need? What changes in the heat, whether ...

Think you need 8 cups of water a day? Or that coffee dehydrates you? Experts debunk the most common misconceptions about ...

Although drinking water is the best source of hydration, there are other things you can do to avoid heat-related illness ...

Water and electrolyte drinks both hydrate you. Sometimes electrolyte replacement is necessary if you have a medical condition ...