Extreme workouts: Good or bad for you?

Extreme workouts: Good or bad for you?

August 18, 2012 7:05 AM

Mitt Romney's running mate, Paul Ryan, is known for controversial policies. He's also known for his love of extreme workouts and physical fitness. Rebecca Jarvis and Ben Tracy spoke with Dr. Ian Smith, a best-selling author, about the health pros and cons of the workouts.

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