According to a National Health Federation Survey utilizing curriculum statistics from 22 medical universities and II chiropractic colleges, the first 2 years of study are very similar. The minimum number for medical students to study classes like anatomy, pathology, chemistry, ect. is around 2,750 hours, for chiropractors it is 2,900 hours. During the last 2 years of medical school, students spend more time studying classes like pharmacology, general surgery and immunology while chiropractors learn more about adjusting the spine, nutrition and natural approaches to health. When it all comes down to it, according to NHF there is a minimum requirement of 4,250 hours for the first 4 years of medical school and 4,500 hours for Chiropractic school.