The psychopathology and psychodynamics of self-destruction.

There are two main reasons for self-destructive behavior, one of which is self-destruction as a result of inhibited aggression. This is one of the main theories on self-aggression based on theories of Sigmund Freud. The second reason, seen especially in attempted suicide, is the so-called "cry for help" described by Farberow and Shneidman: the nonverbal attempt to show one's helplessness by actions when a verbal communication is not or no longer possible. In recent times evidence has been found that there are also genetic and biochemical factors of importance to self-destruction. Besides these main reasons, there are many biological, psychological, and sociological effects that can increase self-aggressive behavior.