This efficient dumbbell routine targets your chest, back, shoulders, and arms in less time. #UpperBodyWorkout ...

Avoid this mistake by regularly injecting variety into your walking routine, which you can do by varying the terrain, ...

Dumbbell exercises to build muscle after 50, with trainer-approved form cues, to get stronger without machines.

Our reporters have teamed up with fitness experts to design dozens of routines. Try something new — and build an exercise habit that sticks.