Originally Posted by Jason Kelley
There was a study (quite recent) that used athletes and rehydrated them by IV so they could not 'taste' what they were 'drinking'.
Those who just got water performed as well as those who got some fancy electrolyte concoction.
I'm guessing this study was for relatively short exercise? Hyponatremia is a risk if you're exercise for long periods and overhydrating (for example, a marathon runner).
The point Coach is trying to make is that overhydration is dangerous, whether with water or Gatorade.
A Google search of "Gatorade hyponatremia" is pretty interesting.