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“Water needs can vary from person to person — and no one person will need the same amount of fluid from one day to the next,” the Virginia scientists wrote in the American College of Sports Medicine’s Health and Fitness Journal.

The typical American consumes about one liter — a little over four cups — of drinking water a day. But people like me who engage in quasi-vigorous physical activity daily need more, and those who exercise strenuously for more than an hour a day need even more than that, perhaps supplemented by a sports drink containing the electrolytes sodium and potassium (but avoid those with more than a pinch of sugar). Keep in mind that skimping on your liquid intake or relying on sugary drinks can take a toll on your physical performance.

If you’re planning to engage in strenuous exercise or do physical work outdoors on a hot day, it’s best to start hydrating the day before. Check the color of your urine; the paler it is, the better. Also continue to drink water or other fluids throughout your activity and for hours afterward.

A critical factor in remaining well hydrated is not to rely on thirst to remind

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Article originally posted at
www.ncbi.nlm.nih.gov

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