By Rhea Solomon A large listing of psychiatrists practice in the United States. Among the Roseville psychiatrists are more than half who are board certified. Medication is often used to treat the more severe cases of mental illness. It can control a great many disorders. The most severe mentally ill people include the schizophrenic who is out of touch with the real world. The afflicted person cannot think clearly, show normal emotional responses or act normally when around other people. The cause is unknown although research shows there may be a genetic cause. This complex mental disorder occurs in women as often as it does in men. Onset is most often in the late teens or early twenties. It can start later in life, especially in women. On the rare occasion that a child develops schizophrenia, it usually starts after the child is five years old. Diagnosing it in children is difficult. The child may exhibit symptoms that can also indicate another disorder. Thus, it is often misdi...