Teens may be famous for not getting all the sleep they need — or getting too much. Either way, getting sufficient sleep may be important for both their weight and mental health.

If you're treating a teen for mental health, it's important to understand the big picture. The big picture includes how much they drink, smoke or use marijuana.

Teens' waist measurements can tell doctors more than what size jeans they wear. Waist circumference is also a pretty helpful indicator of a teen's blood pressure and lipid levels.

It's hard enough to get a baby to sleep. Now, researchers say that babies and toddlers who have trouble sleeping may also have eating problems.

A new study from the University of Haifa finds girls who spend more time on Facebook, the social networking Web site, are more likely to develop eating disorders.