Chiropractic is a form of alternative medicine concerned with the diagnosis and treatment of mechanical disorders of the musculoskeletal system, especially the spine, under the belief that such a disorder affects general health via the nervous system. The main chiropractic treatment technique involves manual therapy, especially manipulation of the spine, other joints, and soft tissues, but may also include exercises and health and lifestyle counseling. The "specific focus of chiropractic practice" is chiropractic subluxation, a form of pseudoscience.