Exercisers Need Fluids and Salt

A study presented at the Experimental Biology meeting in San Diego shows that drinking water helps athletes to exercise longer. Ten college students drank four, eight or 12 eight-ounce glasses of water per day for 12 weeks. On four glasses of water per day, they had five percent lower blood volume than on eight glasses, and ten percent lower that on 12 glasses.

Lowered blood volume should not effect non-exercisers, but regular exercisers can increase their endurance by drinking more fluids. When you exercise, you sweat and breathe off huge amounts of fluid. Losing fluid reduces blood volume to make you tired. Regular exercisers can increase their endurance by taking in plenty of fluids. Competitive athletes can increase their endurance by taking in extra fluids just before the start of their event and drinking fluids regularly during events that last more than an hour. Be sure to replace salt as well as fluid. See report #2416.

Experimental Biology 2003, April 11-15, 2003, San Diego, California Abstract 204.4

Checked 8/11/13

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