Lesson from The Biggest Loser: Don't try this at home

Friday, November 28, 2008 | 1:00 p.m. CST; updated 11:00 a.m. CST, Wednesday, December 3, 2008

On "The Biggest Loser," contestants arrive fat and leave thin. And in between, they go through an intense fitness regimen that is, to put a good face on it, grueling.

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