Heat and hyponatremia

With record heat continuing across the U.S. southern plains, south and southeast, cyclists are reminded to drink plenty of water to counteract the loss of fluid. Remember, though, that it's possible to drink to much water even in the heat and suffer from water intoxication and hyponatremia. These are potentially lethal conditions, and I've seen news reports of athletes and non-athletes who have died from drinking too much water.

Here's a good article in Today's Dietician magazine about the effects, causes and risk factors of hyponatremia.