According to chiropractic, pathological disease may be influenced by disturbances of the nervous system. The following factors can contribute to impaired health: genetic/hereditary factors, improper rest, lack of exercise, inadequate and improper nutrition, overindulgence, foods tainted by pesticides, insecticides, herbicides, fertilizers and preservatives, improperly cooked and/or processed foods, contaminated water, air pollution, stress, bodily trauma, and bacteria and viruses. Almost any component of the nervous system may directly or indirectly cause reactions within any other component by means of reflex mediation. Correction of the spinal (manipulative) lesion is imperative for effective management of common functional disorders of motor structure and for pelvic discomfort.
The modern-day system of chiropractic was founded in 1895 by Daniel David Palmer, despite the fact that the practice of spinal adjustment has existed in virtually every ancient civilization, including that of Egypt. Palmer felt that the task of chiropractic was not to treat conditions but to remove nerve interference caused by subluxations so that the body's inherent capacity to heal itself would be able to take over and restore health and homeostasis. His approach appealed to those who demanded a more natural approach to healing.
Chiropractic medicine has contributed greatly to modern medicine's knowledge of human biology, physiology, and anatomy, specifically of the spine and pelvic areas. Posture, kinesiology, neurology, roentgenology, orthopedics, and osteopathy have been stressed, as has the relationship between structural disorders and mental health.