Now even your work-out can be bad for you: The dangers of extreme exercising

Now even your work-out can be bad for you: The dangers of extreme exercising

Now even your work-out can be bad for you: The dangers of extreme exercising

8:56 PM on 13th July 2011

Buff: Jake Gyllenhaal and Heidi Montag have both lapsed into bouts of extreme addiction, working out excessively and for many hours a day Heidi Montag MGM Grand

Buff: Jake Gyllenhaal and Heidi Montag are extreme exercisers. Gyllenhaal became addicted while training for Prince of Persia while Montag exercised for up to 14 hours a day before the MGM Grand pool party last month

Addicted: Extreme exerciser, Brooke Mora, works out for up to 30 hours a week

Addicted: Extreme exerciser, Brooke Mora, works out for up to 30 hours a week