Restrictions or imbalances. The craniosacral system surrounds the brain and spinal cord, which composes the central nervous system. After finding restrictions, delicate manual techniques are used to release those problem areas. CST strengthens your body’s ability to take care of itself. It helps alleviate headaches, chronic neck and back pain, chronic fatigue, central nervous system disorders, temporomandibular joint syndrome (TMJ) and many other conditions.