This doctrine was born in the late nineteenth century thanks to Daniel David Palmer, who practiced magnetic therapy in Iowa (USA). Chiropractic is based on the structure (in particular the spine) in relation to the function (controlled by the nervous system), which interact with each other while maintaining the physical balance. According to the World Health Organization’s definition, the health of an individual is made up of a state of “psycho-physical well-being”. This concept marries the Chiropractic principles, which assume a balance between structure and function in order to preserve this state of well-being. Chiropractic is a discipline practiced in every region of the world; programs and methods used in Chiropractic are recognized by the “World Federation of Chiropratic” and adopt international standards, requiring a university level education for a period of 4 years. The profession of Chiropractic is therefore legislatively recognized in the United States (where it was born in 1890), Canada, Mexico, Panama, Venezuela, Australia, New Zealand, Hong Kong, South Africa, Botswana, Lesotho, Namibia, Swaziland, Zimbabwe, Cyprus, Jordan, Saudi Arabia, Israel, Switzerland and the European Union.