LAURIE: When the humid weather gets me sweating during exercise I always wonder how you can tell if you aren't getting enough water? I hear that muscle pain and cramps can result from not drinking enough, but is there some specific yardstick to go by, Girlfriends? How do you remind yourself to drink enough while exercising?

APRIL: I always drink about six to eight glasses of water anytime I work out. When I work out outside, I try to drink more afterward durignthe day.

JENICE: When I hit Kelly Drive for a long run, after stretching, the first thing I do is buy a bottle of water from the guy who sells snacks by Boat House Row. Although I'm usually not thirsty, I make sure that I drink it before I finish the run. To force myself to drink while I'm around the house, I sometimes add juice - anything to get me drinking.

JILL: I sip water the entire time I'm exercising -- and all day, as a matter of fact.

KIMBERLY: To stay hydrated I recommend drinking 1/2 your weight in water. For example if you weight 150 Lbs drink 75 ounces of water. Most Americans do not get adequate amounts of water. Water is our most vital nutrient. Every cell in our bodies requires H2O.