Repeated exercise, or wasting, can change the way key genes work.

A new study from scientists at the University of North Carolina at Chapel Hill reveals that the cells shaping our organs may be far more mobile and coordinated than once believed. Using fruit flies as ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You might love leg day (we do, too!), but you’re selling yourself short of the major health benefits ...

If you've let your workout routine slide, the first time back in the gym can be a humbling experience. Your shoulders quake and quads tremble at what were once easy lifts. Luckily, research suggests ...

When's the last time you surprised yourself in a workout? We don't mean by things like scoring a new bench press PR. That's great and all, but can you recall a time you identified a weak spot or tried ...