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

This routine from trainer James Stirling is designed to be tough from start to finish, pushing your back and arms harder than ...

After 45, this 5-move chair circuit tests strength, balance, and endurance—finish it nonstop to prove top-tier fitness.

Benefits: This stretch is great for engaging your posterior chain muscles (the muscles on the back of your body), as well as ...