If you’re looking to work your upper body, enhance your posture, and strengthen your core in one move, you’ve come to the right place. I’m a fitness editor and marathon runner, and recently I added ...

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. The upper back is an ...

Chair exercises to tighten upper arms after 55, from a certified personal trainer, with joint-friendly form cues and faster tricep burn.

There are countless ways to get your workout done. You can opt to do the entire upper body in a session or split the upper body into pulling and pushing movements over two days. A third option is to ...

A broad, well-defined back is a cornerstone of any well-rounded physique. But that’s not the only reason to pump up your posterior—it’s also a critical way of improving posture, reducing back pain, ...