Maintaining adequate hydration will help you concentrate and reach your peak performance. Most people need at least 64 oz (8 cups) of fluid each day. Physical activity, high fiber foods, exposure to heat, alcohol consumption, caffeine, illness, and some medications increase the amount of fluid your body needs. Excellent choices for staying hydrated include:

Courtesy of University Health Services, The University of Texas at Austin.
Published by the University of Texas at Austin University Health Services.
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