Did you know most people lose as much as 1 qt (1 L) to 2 qt (2 L) of fluid during 1 hour of exercise? If you are an athlete, you can lose as much as 3 qt (3 L) of fluid per hour during an intense workout. Fluid loss in endurance activities such as distance running, cycling, strenuous hiking, or cross-country skiing can be severe. These types of activities can quickly lead to heat exhaustion.  Jan Nessl, RN, offers some helpful tips on how to keep your body hydrated during exercise to make sure you’re at the top of your game.  Drink up, and read more at health.yahoo.com. KEEP MOVING!-Elizabeth, CPT.