For example, some people may experience a transient lack of brain control due to stress, insomnia, or anxiety. However, if the brain is often out of control, then it may be a manifestation of OCD or schizophrenia. You should pay attention to the situation and go to the psychiatric department of a regular hospital to have your doctor examine you to determine if you are suffering from OCD or an early manifestation of schizophrenia according to some psychiatric scales. Based on the results of the examination, you can take targeted measures. You should be active, such as walking and swimming, to help relieve anxiety and improve the brain’s attention span.