A water tale for all seasons: When it comes to hydration and exercise, the system works
5th Sep 2005, 14:30 GMT
For 20 years, the US Army Research Institute of Environmental Medicine (USARIEM) has studied the effect of temperature and the environment on physical performance. One recent study showed that dehydration reduced physical performance 8% in temperate/cool air (68F), but only 3% in a cold 36 degrees F. A second USARIEM study found that ingesting glycerol was an effective hyperhydration agent in cold-air exposure. Plus, five "common sense" tips on hydration, exercise and weather.
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