As the years go by, something as simple as walking down the street, stepping off a curb, or even getting up from the couch ...

When you think about being "fit," what comes to mind? Probably defined muscles, endurance for running, or lifting heavy ...

Deep squatting is more common in cultures outside the U.S. — but is it better for our bodies? Here's what experts say.

How hormones secretly impact your sex drive explores how estrogen, testosterone, and others shape intimacy and pleasure.

Sculpt your core, sharpen your posture, and upgrade your entire physique.