The human mind, when submitted to unusual levels of stress, reacts in many different ways. The more unusual cases, such as mental divergence, occur when the mind creates an alternate reality in which the patient can exist, free from the stresses of real-life. Such examples are schizophrenia, split-personality syndrome, schizophrenic psychosis, and dementia praecox. Others minds react with chronic depression, fatigue syndromes, and such disorders which directly affect bodily functions. Another sort of mind, one that seems to have a stronger sense of self and determination to survive, react by aggression. Robbery, rape, assault, murder, and other violent crimes can be directly linked to stress in the subject’s everyday life. Many victims of violent crime are subject to large amounts of mental stress and paranoia, which in turn can increase the chance that they will be the perpetrator of violent crime in the future. Source.