btw, ena novejših študij:
http://www.nlm.nih.gov/medlineplus/news/fullstory_153342.html
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Athletes often are mistakenly advised to "push fluids" or drink more than their thirst dictates by, for example, drinking until their urine is clear or drinking to a prescribed schedule. But excessive fluid intake does not prevent fatigue, muscle cramps or heat stroke.
"Muscle cramps and heatstroke are not related to dehydration," Dr. Winger said. "You get heat stroke because you're producing too much heat."
Modest to moderate levels of dehydration are tolerable and pose little risk to otherwise healthy athletes. An athlete can safely lose up to 3 percent of his or her body weight during a competition due to dehydration without loss of performance, Dr. Winger said.
The guidelines say EAH can be treated by administering a concentrated saline solution that is 3 percent sodium - about three times higher than the concentration in normal saline solution.
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Torej ne samo 1 gram soli v domač napitek, ampak veliko več. Če se ne motim je natrija v soli nekje polovico, torej bi moral dati nekje 6g soli v liter vode.
PS, čeprav dvomim da je tu kak tak profi, ki bi mu to prišlo prav, ampak mogoče pa