Shoulders are, in many ways, a marvel. One shoulder has four separate joints, packed with muscles, that allow us to move our ...

Shoulders are, in many ways, a marvel. One shoulder has four separate joints, packed with muscles, that allow us to move our arm in eight different major ways, giving us the most degrees of freedom of ...

Coronary artery disease (CAD), better known as clogged arteries, is the leading cause of death in the United States, ...