This simple yet powerful move targets the back of your arms using just your body weight—and it delivers serious results.

There's a good chance you're overlooking one of the most growth-promoting chest exercises available—and it doesn't require a ton of equipment, either. In a recent Reddit thread, one natural ...

When you’re starting out, try two to three sets of 10 to 15 repetitions for each move. You can do one set of one exercise, rest for 30 to 60 seconds, and then do the next set. Then move to the next ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Arm day can be one of ...