The shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. This flexibility is also what makes the shoulder prone to instability and injury. Muscles, ...

Fun fact: The shoulder joint is the most flexible joint in the body because of its ball-and-socket structure, which allows for a wide range of movements. Shoulder mobility exercises and stretches can ...

Shoulder shrugs may help relieve muscle tension in your neck, shoulders, and upper back. They’re great for most fitness levels and could be modified for different levels of strength. If you have a ...

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. Your shoulders are an ...

Your rhomboid muscles connect your shoulder blade (scapula) to your spine. If your rhomboid muscles hurt, you’ll feel it in your back and shoulders. “The rhomboids can become painful because of ...