As a personal trainer and fitness journalist, I am often asked about the best way to build muscle in the arms, particularly the upper arms and shoulders. My answer? If you’re not already, it’s time to ...

Just like your last relationship, the shoulder is super complex. The shoulder capsule, a tough fibrous sleeve, helps to hold the ball-and-socket joint together. An inner layer, called the synovium, ...

Building bigger shoulders is more about proper form, range of motion, and maximum tension—and far less about lifting super heavy. Exercise scientist Mike Israetel, PhD, of Renaissance Periodization, ...