Rebuilding muscle after 50 doesn't have to mean endless hours at the gym. In fact, some of the most effective exercises use nothing more than a Swiss ball to challenge your body in ways traditional ...

A broad, well-defined back is a cornerstone of any well-rounded physique. But that’s not the only reason to pump up your posterior—it’s also a critical way of improving posture, reducing back pain, ...

The condition is hard to treat. But moving can help, if you do it right. Ask Well The condition is hard to treat. But moving can help, if you do it right. Credit...Joyce Lee for The New York Times ...