In this article the first thing I my eyes found were, 250 hospitalized, then came along the real picture, 'Runner dies at Chicago Marathon: 250 hospitalized.

Personally I don't know anybody who would probably do a thing like that,especially on a 73 degree day, with 86 to 88 percent humidity.

When do you call it enough, or how much do you cross the line to put yourself at risk? Because when you're most likely running in heat like that, or at far lengths your kidneys and organs are most likely to shut down. But I guess that is a risk some people take.