Schizophrenia is a mental illness that prevents a sick person from distinguishing real from unreal experiences, interferes with logical thinking, normal emotional experiences towards other people, and impairs his social functioning. In schizophrenic disorders, certain brain functions change. The consequence of this is a change in opinion, perception and affectivity, in general, a change in the psyche. One percent of people will develop a picture of schizophrenia during their lifetime.
Among people whose parent is ill, or a brother or sister, 10-15 percent of them will develop the disorder, and among children whose both parents have schizophrenia, 40 percent of them.
Men are at the highest risk for developing schizophrenia between the ages of 15 and 35, with the highest risk in their twenties. Women also have the highest risk in their twenties. After the 20s, the risk does not decrease as in men, but even it becomes higher in women.