Based on research on aging men and their risk of fathering children who will develop schizophrenia, it has been estimated that men in the 45-49 age group are to have offspring with schizophrenia as other men.

Twice

Explanation:

Schizophrenia is a mental disorder that affects the individual thinking, behaviour and feeling.The person suffering from Schizophrenia seems to have lost touch with reality.The symptoms of Schizophrenia are Hallucination, Delusions, Disorganized thinking, Extremely disorganized or abnormal motor behavior.Schizophrenia strikes at the age between 16 and 30. Male show symptoms at earlier age than females.There is no way to prevent Schizophrenia. People suffering from Schizophrenia require lifelong treatment.