The arm extends from the shoulder to the wrist, including the upper arm and forearm. Different muscles may work together in intricate ways to help the arm, wrists, fingers, and hands function. Knowing ...

What most of us commonly refer to as the “backside of our body” actually has an anatomical name: the posterior chain. While the posterior chain runs from your neck down to your ankles, the focus is ...

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. You probably work your ...

The exercises you'll include in your routine to target these posterior muscles (which include your rear delts, rhomboids, ...