is the branch of health science
and the sector of public life concerned with maintaining or restoring human health
through the study, diagnosis and treatment of disease
. It is both an area of knowledge
— a science
of body systems
, their diseases and treatment — and the applied practice
— an art
— of that knowledge. However, medicine
often refers more specifically to matters dealt with by physician
s and surgeons
Medicine is both an area of knowledge (a science), and the application of that knowledge (by the medical profession and other health professionals such as nurses). The various specialized branches of the science of medicine correspond to the equally specialized medical professions dealing with particular organs or diseases. The science of medicine is the knowledge of body systems and diseases, while the profession of medicine refers to the social structure of the group of people formally trained to apply that knowledge.
Medicine comprises used amongst medical professionals as shorthand for internal medicine. Veterinary medicine is the practice of health care in animal species other than human beings.