Many people will have this experience, in the night when they sleep dreaming will have the phenomenon of dreaming, this situation is mainly due to the following reasons: 1, the psychological factors are very critical, the general patients if the internal pressure is relatively large, nervous, emotional instability, easy to dream at night and the situation of dreaming. 2, with the physiological factors, if the patient before going to bed to eat too much or excessive hunger, or the cerebral cortex is in a state of excitement. If the patient eats too much or is overly hungry, has a lot of activities before going to bed, or the cerebral cortex is in an excited state, such as after watching some horror movies and dramas, it is easy to dream and talk in dreams. 3, related to environmental factors, if the patient sleeps in a chaotic or bright environment, it is easy to cause the patient’s cortical function disorder, so that the problem of dreaming and talking in dreams occurs.