Psychology is the study of the mind and behavior. It also refers to the application of such knowledge to the problems of individuals' daily lives and the treatment of mental illnesses. Psychologists are trained professionals in the field of psychology. They use what is called psycho-analysis to get to the root cause(s) of a patient's behavior and actions. They do this through a number of sessions in which the patient recalls specific memories of life-altering events. Psychologists use this information along with other observations to formulate the course of treatment for the mental illness or other self-limiting neuroses or irrational fears.

A mental illness can be described as a specific problem that causes a sustained disruption of your general well-being, behavior, or mood, and interferes with your normal functioning. It can result in either psychological or physiological symptoms. Mental illnesses fall into many different categories, each with its own set of symptoms. Some of the most prevalent disorders and their symptoms are: