The craniosacral system, which consists of the membranes and cerebrospinal fluid that surround and protect the brain and spinal cord, can be evaluated and improved through the gentle, hands-on process of CST. Practitioners increase the functioning of the central nervous system by releasing constraints in the craniosacral system with a gentle touch. CST is used as a preventive health measure because it can strengthen resistance to disease and is effective for a variety of medical conditions including headaches, neck and back pain, emotional difficulties, stress-related conditions, chronic fatigue, and fibromyalgia. It also works by enhancing the body's natural healing processes.