Problem you are having. To understand one thing and another, I first explain what the anatomy of the shoulder is. The shoulder is complex so can this explanation,Testoboost ProTHE ANATOMY OF THE SHOULDER The shoulder is the attachment point for the upper arm bone. To allow the arms to move, the head of the upper arm bone (caput humerus) lies in a cavity-shaped part of the shoulder blade. However, the head of the upper arm bone is much larger than this hollow, just like a golf ball on a tee (that wooden or plastic thing where you put the ball on the first stroke). Because the "ball" and piece is larger than the bowl, this offers a lot of mobility so that the upper arm can move in almost any direction. This shoulder joint is  ..…Testoboost  pro                           

For more information please visit …>>>>>http://www.activebodyproduct.com/testoboostpro/