A branch of the healing arts focused on human health, disease processes, and physiological and biochemical aspects of the body including structural, spinal, musculoskeletal, neurological, vascular, nutritional, emotional and environmental relationships. Chiropractic procedures include the adjustment and manipulation of the articulations and adjacent tissues of the human body, particularly of the spinal column. Included is the treatment of intersegmental dysfunction for alleviation of related functional disorders. Chiropractors do not use medications or surgery. However, nutritional supplementation may be prescribed.