30 Mar '14, 1pm

A simple way to know if you are dehydrated.

No one doubts that proper hydration is necessary for optimal functioning. But a debate has raged in recent years about how to determine when you need to drink, and there are at least 13 hydration-assessment methods. The result is more confusion than clarity. Two camps have received much publicity in running circles. On one side, precision-minded scientists advise you to weigh yourself before and after workouts to determine your sweat loss, and hence your hydration need. On the other side are those who simply say “let thirst be your guide.” A new paper from a team of heat-and-hydration experts at the University of Connecticut concludes that morning thirst is an accurate indicator of 2% dehydration, which is considered the point at which endurance performance begins to deteriorate. “This is the first study to show that thirst is reliable dehydration guide, at least in the mo...

Full article: http://www.runnersworld.com/drinks-hydration/a-simple-new...

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