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April 11, 2019

Workout of the Day

Run or row 5,000 meters.

Stretch and practice handstands for 20 minutes.

Post time to comments.

Khan Academy


Professor Tim Noakes explains how industry-supported research created what would prove to be a fatal fable about athletes’ hydration needs during exercise. Noakes calls this fable the “Zero-Percent Dehydration Doctrine,” which led to a dangerous prescription that athletes drink as much as they can tolerate during exercise, regardless of exercise intensity, personal characteristics, or environment. Noakes outlines the methodology behind a study by Drs. Scott Montain and Edward Coyle that was integral to the creation of this prescription and explains why the researchers’ conclusions were flawed. He elucidates how so-called experts helped the sports drink industry, with the assistance of the ACSM, by creating a disease out of dehydration that conveniently could be treated with the consumption of its products, sometimes to disastrous effects.

Read MoreThe Hyponatremia of Exercise, Part 6

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