Craniosacral therapy uses light touch, because too much pressure pushes past the fascia and into deeper tissue; the light touch releases and "unwinds" the fascia. This can help make local and global changes to a person's pain or symptoms. The treatment is very relaxing and therefore, can decrease the patient's sympathetic, "Fight or Flight " response system that is contributing to their pain and tightness. Craniosacral therapy has been used to treat headaches, concussions, chronic neck and back pain, and pain from motor vehicle accidents.