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Even mild dehydration (1.36 percent loss of normal water volume in the body) can slow your mental gears and make you feel woozy, concluded the authors of a study published last year in the Journal of Nutrition. But the sensation of thirst doesn't usually kick in until you're about 1 or 2 percent dehydrated, so a dry mouth isn't a reliable gauge. In addition to drinking plenty of water, you can stay hydrated by snacking on raw fruit and vegetables, yogurt or soup. |