Weight Gain, Obesity | featured news

Even a few nights of sleep deprivation, according to a new study, can make your fat cells behave like they're much older and less responsive to the hormone that controls metabolism.

The number of obese people in the U.S. is projected to double by 2030 contributing to soaring health costs.

At least the United States is not alone in getting fatter -- the entire world is gaining weight, too, according to a massive world weight project published yesterday and reported on by The Post's David Brown.

Alicia A.S. Duque knew she had some pounds to lose, but she had no idea how much being overweight affected her until the television cameras started rolling.