Learn how to identify and treat a muscle strain that leads to armpit pain. Get to know how to gauge severity and recovery timelines.

We now know the postpandemic transition will take years. Leaders should acknowledge that—and start making plans for how to cope. by Lynda Gratton Two years ago, as much of the world was gradually ...

A fitness expert who introduced training techniques to the US Navy SEALs, Marines and Army detailed the approach focused on training less and building muscle.

Get stronger and build muscle fast with this Chris Bumstead-approved full-body routine that hits every major muscle group.

A 30-day, no-floorwork standing abs plan that boosts fat burn, posture, and core strength—anywhere, no gym required.