Humans need to drink water to survive. Many of our body's functions would shut down without drinking water, such as urination, bowel movements and temperature regulation. In fact, over 50% of the ...

It's always important to stay hydrated. After all, more than half of the human body is made of water. Drinking water keeps you from becoming thirsty and can help cool you off on a hot day. But staying ...

It's hot outside — and it's about to get a lot hotter for millions of Americans this weekend. The National Weather Service has issued excessive heat watches, warnings and advisories in the Plains, ...

Water is essential for survival; if people don't adequately replenish lost fluids, it can affect their bodies' abilities to function properly. After all, water makes up the majority of the body.

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

Most people believe thirst is the first sign of dehydration, but this dangerous misconception puts millions at risk every day. By the time you feel thirsty, your body has already been operating in ...