Study: Half of Runners May Be Overhydrating

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Recreational runners may be getting too much hydration during races, according to a study conducted by Loyola University Health System. A survey of 197 runners found that 36.5 percent of runners drink based on a schedule or to maintain weight, and 8.9 percent of runners drink as much as possible.

Advertisements for sports beverages in past decades may have fed into misconceptions about the amount of fluid needed to prevent dehydration and encouraged athletes to drink as much as possible. Current guidelines from the International Marathon Medical Directors Association recommend that athletes drink only when thirsty.

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