Even golfers using a motorized cart can burn about 1,300 calories and walk 2 miles when playing 18 holes. Halfdark/fstop/Corbis hide caption

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Halfdark/fstop/Corbis

Take A Swing At This: Golf Is Exercise, Cart Or No Cart

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Coss Marte started selling drugs at age 13 and by 19, he says, he was making $2 million a year. After serving a prison sentence, he founded a "prison style" fitness boot camp. Justin Fennert/Courtesy of Behind the Stache hide caption

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Justin Fennert/Courtesy of Behind the Stache

From Jail Cell To Studio: Drug Dealer Becomes Personal Trainer

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If you're overweight, the best way to spend your limited time exercising is aerobic activity, a researcher says. Rhodes ludovic/iStockphoto.com hide caption

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