Add Yahoo as a preferred source to see more of our stories on Google. Photo illustration: Mark Harris for Yahoo News; photos: Getty Images When Mike was 13, he became intrigued with the weight room at ...

There's a terrifying new health trend among teenage boys, according to Men's Health's new documentary Generation Flex: Bulking up, even to the point of ignoring dangerous side effects. There's a name ...

Creatine use among United States teens has surged in recent years even as anabolic steroid use has dropped sharply over the past two decades, raising concerns about growing acceptance of ...