That may also be the reason why some people who sweat buckets while doing vigorous excercise feel groggy soon after doing it.

#8 - yep, Leah Betts. She drank several pints of water in a very short space of time and died from water on the brain. It was in the news this weekend as another teenager has died from taking Ecstasy, although there is no suggestion she died from drinking too much.
Vinny is seems to me that there was a death at a DC area marathon within the last couple of years. This and other incidents have led to changes in the way the monitor marathon runners.

That was my vague memory at first, Stan. I guess I conflated it with the disc jockey case. Googling I see that someone did die of hyponatremia at the Marine Corps Marathon in 2003. Also at the Boston Marathon in 2002 and at the London Marathon in 2007. And that
a study published in the New England Journal of Medicine (April, 2005) found that 13 percent of Boston Marathon runners developed hyponatremia from drinking too much water.
Is 8 years a "couple"? Man I hate that I can't keep track of how many years pass anymore. I was thinking of the Marine Corp one.