Psychiatry is the branch of medicine that deals with the science and practice of treating mental, emotional or behavioral disorders.
Psychiatry is the branch of medicine concerned with mental illness. The subject matter of psychiatry overlaps to a great extent with that of clinical psychology, the main difference lying in the training and orientation of the psychiatrist and the clinical psychologist. The psychiatrist usually has no training in psychology other than in psychopathology and is encouraged to adopt a medical model for dealing with psychological disturbance. The clinical psychologist usually has no training in medicine, cannot prescribe drugs and tends to regard normal and abnormal behaviour as being on the same continuum.