weight loss

Government guidelines say exercising 2.5 hours a week will keep you healthy, but a study says you can get the job done in less time if you rev it up. iStockphoto hide caption

Electrical impulses generated by a pacemaker-like device are transmitted to the vagus nerve by electrodes. Enteromedics hide caption

Sure, these Buffalo-chicken-and-kale-stuffed mushrooms look tasty, but they aren't the giant bowl of salt and corn syrup your brain really, really wants. Matthew Mead/AP hide caption

Belviq, a weight-loss drug from Arena Pharmaceuticals, was approved by the Food and Drug Administration in 2012. With the agency's approval of Saxenda in December, there are four new weight-loss pills available. Arena Pharmaceuticals Inc/Reuters/Landov hide caption

If losing weight has you feeling light as air, you may be on to something. Terry Vine/Corbis hide caption

Wouldn't it be great if this stuff really did cause quick painless weight loss? iStockphoto hide caption

When does a diet drug tip the balance for health? iStockphoto hide caption