Cranial sacral therapy is a gentle manual therapy that uses light touch to decompress the bones of the head and spine, releasing tension throughout the body. It can alleviate pain from conditions like fibromyalgia and injuries. During treatment, muscles relax and cerebral spinal fluid circulation improves to boost the immune system. Other types use more pressure or target specific distortions to provide full-body relief of pain and dysfunction. A typical session lasts 90 minutes to fully address muscular tensions.