Since their brain functions different than the usual human being they can't cope with the problems of life. The schizophrenics drive themselves crazy wanting to kill themselves and others in order to escape from this perplexing world. Schizophrenia is the most common psychoses in the United States affecting around one percent of the United States population. It is characterized by a deep withdrawal from interpersonal relationships and a retreat into a world of fantasy. This plunge into fantasy results in a loss of contact from reality that can vary from mild to severe.
Psychosis has more than one acceptable definition.
The psychoses are different from other groups of psychiatric disorders in their degree of severity, withdrawal, alteration in affect, impairment of intellect, and regression. The severity of psychoses are considered major disorders and involve confusion in all portions of a person's life. Psychosis is seen in a wide range of organic disorders and schizophrenia. These disorders are severe, intense, and disruptive. A person with a psychotic disorder suffers greatly, as do those in his or her immediate environment.