Definition: Dehydration refers to fluid levels in the body that are below normal levels. The general recommendation is to drink about 16 ounces of water two hours before your workout and then sip throughout your routine. If you're exercising for more than an hour, you may want to switch to a sports drink.
Dehydration
By Paige Waehner, About.com
Created: March 5, 2009
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
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