The health care is the applied sciences and biomedical sciences. They focus on the health of man or animal. They involve not only research, study and knowledge of health, but also the application of this knowledge in order to improve health, cure disease and improve the functioning of the body.

Health care are based on medicine, pharmacology, biology, chemistry and physics and social sciences (eg sociology). Health care are contemporary mores and reflect the themes of ethics and bioethics, such as privacy, abortion, euthanasia, cloning or genetic engineering. The health care sector includes a wide range of disciplines.

Health education is a process of helping someone, by acting individually or collectively, to make informed decisions on matters that affect personal health and others. An even simpler definition proposed by Larry Green and his colleagues who wrote that health education is a combination of learning experiences designed to facilitate voluntary adaptations of behavior conducive to health.