Death By 100 Degrees

Korey Stringer's tragic end reminds us that heatstroke can hit with surprising speed. How to protect yourself

In retrospect, the warning signs seem painfully obvious. The Minnesota Vikings started their training camp last Monday on what was one of the hottest days of the year in Mankato, Minn. All-Pro tackle Korey Stringer was overcome during the morning session and had to be carted from the field. The next day turned out to be even hotter and more humid. Some of Stringer's teammates reportedly teased him about a newspaper photo that caught him doubled over with exhaustion the day before. "I'll show them!" the 335-lb. offensive lineman must have figured. He turned in what was by all accounts a...

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