Chiropractic is defined as “a health care without the use of drugs and surgery. The practice of chiropractic focuses on the relationship between structure (primarily the spine) and function (as coordinated by the nervous system) and how that relationship affects the preservation and restoration of health"(Tree of Life Chiropractic, 2016). Chiropractic medicine has come a long way from where it began. In the beginning, Dr. Palmer did not use science based knowledge in his first adjustment, but as he went on he learned more and based the rest of his findings off of science. He never would have been able to open a college if the science was not authentic, legitimate and justifiable. Chiropractors must go to college now for a minimum of 7 years