Schizophrenia is a mental disorder that generally appears in late adolescence or early adulthood - however, it can emerge at any time in life. Cognitive Remediation is used to improve the quality of life and the insertion of these patients. It is one of many brain diseases that may include delusions, loss of personality (flat affect), confusion, agitation, social withdrawal, psychosis, and bizarre behavior. Individuals with schizophrenia may hear voices that are not there. Some may be convinced that others are reading their minds, controlling how they think, or plotting against them. This can distress patients severely and persistently, making them withdrawn and frantic. Schizophrenia most commonly strikes between the ages of 15 to 25 among men, and about 25 to 35 in women. In many cases the disorder develops so slowly that the sufferer does not know he/she has it for a long time. While, with other people it can strike suddenly and develop fast.