Fun Fact 3 of 14: Interestingly, chiropractors don’t just adjust parts of your spine at random. If you have been to a chiropractor you will have noticed that they touch and feel your spine, move it around, possibly test your muscles to see how strong they are, press on parts of your spine to find out if it is tender at particular points and so on and so on. They very carefully choose specific spinal segments to adjust. The segments that chiropractors choose to adjust will often have corresponding muscle tightness and tenderness if pushed upon, and the joint will have abnormal movement. The abnormalities, among others, indicate the presence of what chiropractors call a vertebral subluxation.