America's laziest teens: Which state is worst?

Obesity is a big, fat problem for teens - and a growing one. Obesity rates among U.S. teens have more than tripled in the past 30 years, rising from 5.0 percent to 18.1 percent.

What's going wrong? Bad eating habits are no doubt to blame, but so is a lack of exercise - and some states have more couch potato kids than others. Keep clicking to see the rankings...

The rankings - based on recent surveys supervised by the Centers for Disease Control and Prevention - aren't perfect. But they're certainly provocative, especially to parents eager to get their kids up off the couch.

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