The treatment of slow thinking is mainly psychotherapy, and psychotherapy is a very important type of treatment for psychotic depression. Mild depression can be treated without medication, relying solely on psychotherapy, while moderate to severe depression treatment uses antidepressants to control the condition, and psychologists generally assist in implementing psychotherapy in conjunction with treatment. Psychotherapy for depression can help people recover from depression in several ways, including cognitive-motor, interpersonal, psychodynamic, and other kinds of “talk therapy. Psychotherapy offers people the opportunity to identify the causes of their depression and to effectively address psychological, behavioral, interpersonal and environmental factors. The prevention of slow thinking is very important to maintain a good state of mind, to keep the mood, optimism, open-mindedness, strong confidence to overcome the disease, do not be afraid, only in this way, to mobilize the subjective initiative, improve the immune function of the body. Reasonable diet can be more intake of high fiber and fresh vegetables and fruits, balanced nutrition, including protein, sugar, fat, vitamins, trace elements and dietary fiber and other essential nutrients, meat and vegetables.