Dream talking refers to the phenomenon of talking during sleep, many people will talk in their sleep, occasionally it is normal, but often talking in their sleep may affect the quality of sleep and cause sleep disorders. Human sleep can be divided into non-rapid eye movement sleep and rapid eye movement sleep, the two phases of intermittent intervals, about every 90-100 minutes for a cycle, non-rapid eye movement sleep can be divided into four periods of sleep, light sleep, moderate sleep and deep sleep period. As the sleep deepens, the activity of human organs gradually decreases, and the cerebral cortex starts to tend to the inhibitory state, but if some cells are still in the excited state, they start to dream, and at this time, they establish contact with the nerve cells that control speech, and the phenomenon of dream talking will occur. The common reasons for dreaming are as follows: 1, psychological factors: it is often said that “there are thoughts in the day and dreams in the night”, if you are always thinking about a thing or work pressure, resulting in mental tension and emotional instability, you will talk in your sleep; 2, physiological factors: too full or too hungry before going to bed, drinking coffee, tea or functional drinks, a lot of exercise and activities before going to bed, being in a chaotic and bright light. Activity, in a chaotic and bright environment, etc. cause the brain in a hyperactive state; 3, physical factors: some people talk in their sleep is related to neurasthenia, dreams are subconscious reactions, some impulses and instincts in reality will be repressed, and thus gradually released in the dream. 4, disease: Chinese medicine generally believes that often talking in dreams is related to liver fire, heart fire, but also due to phlegm, damp heat, so if the original habit of talking in dreams, recently suddenly found to have been talking in dreams should go to a Chinese medicine doctor to see, Chinese medicine will give according to your overall condition for dialectical treatment. In short, dreaming is a phenomenon caused by many reasons, dreams and dreaming are normal physiological phenomena, but if long-term dreaming will affect the quality of sleep, need to pay attention to, timely adjustment.