It's a no-brainer that you need plenty of water, especially after soaking through your sports bra during a workout. But you may not be guzzling enough. In fact, on average, Americans drink a little more than four glasses a day, which is a drop in the bucket. Shortchanging yourself can affect your workout, your weight -- even your brainpower. Here's how to make sure you're getting your fill to stay healthy and revved up for anything.
The Sipping Point
Virtually every system in the body relies on H2O, says Lawrence Armstrong, PhD, a professor of exercise and environmental physiology at the Human Performance Laboratory at the University of Connecticut. Water protects and hydrates our organs, transports nutrients to our cells and helps us stay energized and mentally sharp. It also balances the level of electrolytes -- minerals such as sodium and potassium -- in our bodies to keep our muscles functioning