Why do my shoulders burn intensely from chronic defensive posturing?

Why do my shoulders burn intensely from chronic defensive posturing?

1. Introduction Intense burning in the shoulders from chronic defensive posturing results from sustained isometric muscle contractions in the trapezius and levator scapulae muscles. Holding the body in a continuous state of physical guard restricts local blood flow and forces the muscles to rely on anaerobic metabolism. This metabolic shift leads to a rapid accumulation … Read more