'There are nine types of body constitutions. Each individual has their own constitutions that are related to diseases. The source of health comes from a harmonious constitution, while the cause of disease is rooted in an unbalanced constitution.' The TCM constitution theory places the individual life in the research scope and aims at studying the constitutional features, evolvement rule, influence factors and classification standards of different constitution. The adjustability of constitutions is emphasized. The prevention and diagnosis/treatment of disease as well as recovery and health preservation starts from improving one's constitution. In accordance with standards from the 'TCM Constitution Classification and Determination' issued by the China As...