Doctors treat injuries and sick patients. Doctors examine patients, find out patient's medical histories and give medications.
Nurses, also called registered nurses or RNs, take care of sick and injured people. They give medicine, treat wounds and give emotional support to patients and their families.
Pharmacists are experts in medicine and its side effects.
Psychologists study the human mind. They also try to explain why people act as they do. They do research to test their ideas about people's actions.
Recreational therapists help people who are sick or hurt to get active again. They use sports, games, arts, crafts, and music to help patients.