The causes are: 1, physiological factors, with the increase of age, the sleep time will be correspondingly shortened, the sleep quality is relatively lower, without excessive treatment, such as serious impact on life can apply tranquilizing and sleep-aiding drugs. 2, environmental factors, the sleep environment is too noisy, the room temperature is not suitable, the light is too strong and other factors can affect the quality of sleep, resulting in insomnia, symptoms of excessive dreaming. 3, psychological factors, such as too much stress in life, emotional excitement and anxiety, too long brain time and other factors are prone to cause excessive dreaming, 3, psychological factors, such as too much pressure in life, emotional excitement and anxiety, excessive brain time and other factors are likely to cause excessive dreaming, through the specialist psychological guidance and psychological intervention. 4, disease factors, such as neurasthenia, menopause syndrome, hyperthyroidism, etc., can be accompanied by sleep disorders, can also cause insomnia, excessive dreaming, need to be treated according to the specific cause of the cause.