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, ...

Your deltoid muscles make up a main muscle group in your upper body. They’re connected with many other muscles and bones in your upper back, neck, and shoulder region and are extremely mobile. They ...

Your rotator cuff includes several muscles that support range of motion in your arm and shoulder while holding the socket in place. The rotator cuff is a group of four muscles that hold your upper arm ...

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 ...

Well-defined shoulders not only enhance your silhouette but also create a balanced frame that makes your waist appear smaller and improves overall posture. The good news? You don’t need complicated ...

Upper back pain between the shoulder blades may result from poor posture or muscle strain. However, it can also stem from more serious problems with the spine, such as scoliosis or osteoarthritis.

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

Neck and shoulder pain can be caused by poor posture, muscle strains, or degenerative conditions, which break down the structure and function of certain organs and tissues. Targeted exercises can help ...

Sleep helps the body repair itself. However, some people may notice that their shoulder hurts after sleeping, or that sleep makes their preexisting shoulder pain worse. Shoulder pain from sleeping has ...

Frozen shoulder, also known as adhesive capsulitis, is a condition wherein your shoulder movement gets limited. This happens when the connective tissue around the shoulder becomes stiff, thick and ...