A large number of chiropractors fear that if they do not separate themselves from the traditional vitalistic concept of innate intelligence, chiropractic will continue to be seen as a fringe profession. A variant of chiropractic called naprapathy originated in Chicago in the early twentieth century. It holds that manual manipulation of soft tissue can reduce "interference" in the body and thus improve health.
Among people seeking back pain relief alternatives, most choose chiropractic treatment. About 22 million Americans visit chiropractors annually. Of these, 7.7 million, or 35%, are seeking relief from back pain from various causes, including accidents, sports injuries, and muscle strains. Other complaints include pain in the neck, arms, and legs, and headaches.