Your rotator cuff is four muscles (SITS) that keep the shoulder ball centered in its socket. Learn why imbalance overloads it and how to fix it at the root.

Arm numbness and tingling often start at the shoulder, where poor shoulder blade and ribcage position crowds the nerves leaving your neck. Here's why.

Most shoulder and neck pain starts with how your shoulder blades move on your ribcage. Learn the real cause and the safest path out of pain.

And more importantly — how do you stay injury-free while training? Field notes from years of treating world champions, everyday practitioners, and everyone in between.