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

If you are working outside during a heat wave, the US Centers for Disease Control and Prevention recommends drinking 8 ounces ...

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

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

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