Rehabilitation psychology takes all the studies and applications of psychology and focuses it on people who have disabilities and/or chronic health conditions.
Assessment and treatment to develop, recover, or maintain the daily living and work skills of people with a physical, mental, or cognitive disorder.
Medical or psycho-therapeutic treatment, for dependency on psychoactive substances such as alcohol, prescription drugs, and street drugs and so on.
Medical doctors who evaluate patients to determine whether their symptoms are the result of a physical illness, a combination of physical and mental.