Physical health care in traditional Chinese medicine is to divide people into eight different constitutions, tell the formation reasons, main manifestations and susceptible diseases of each constitution one by one, help people know what kind of constitution they are, and tell people from the aspects of diet, daily life, spirit, medicine and meridian conditioning that health care should be different for each person and reflect individual differences in order to achieve twice the result with half the effort. The essence of TCM is syndrome differentiation and treatment, paying attention to individual differences, while the essence of TCM is disease differentiation, treatment and health preservation, that is, observing and mastering patients' physique, and on this basis, analyzing diseases, formulating treatment principles and health preservation according to people. See the monograph Physiology of Traditional Chinese Medicine for details.