We all need to use our arms… each and every day. Whether for putting clothes on, pitching in the MLB, or carrying a baby, shoulder pain effects daily life, sleep, and more. It is important to understand the mechanics of this complicated joint- and consider the health of the neck, back, spine, ribs, chest muscles, back muscles, arm and posture when properly treating and going through the differential diagnosis process. Pain in the shoulder is often not indicative of where the root issues is, but actually where the primary and secondary compensations have progressed.