Pay close attention to the rules and training tips below to make safe gains for years to come. Related: I'm a Trainer, and ...

Trainers share how to make the most of arm exercises without weights, plus our favorite moves that help improve mobility and posture in just minutes a day.

Want to lose stubborn belly fat? This expert-approved bodyweight workout will help tighten and tone your midsection—no equipment needed.

In the time it takes to talk yourself out of a workout, you could have completed this quick, three-move upper body routine.