Health care refers to services that protect, restore or promote the physical, spiritual, mental and social well-being of the person from the time of conception to the time of death. These include a wide range of services which include not only the individualized science of curing but also the prevention of diseases, alleviation of pain, caring and attention to social factors. "

Health care services are all of the activities of a society which are designed to protect or restore health, whether directed to the individual, the community or the environment."
(Medical Care, 9, 272, 1871)