Up is down. Black is white. And dehydration makes you faster--if you time it right. It seems crazy, but scientists and coaches have begun experimenting with dehydration as a training tool, using it to ...

While dehydration is often associated with hot and humid conditions, it's important to drink enough water throughout the year to keep your hydration levels stable – even in colder temperatures, when ...

Dehydration occurs when more water and fluids leave the body than enter it. Symptoms of dehydration can include darker urine, headaches, lethargy, dizziness, and constipation. The human body is ...