Dream talking is the phenomenon of talking during sleep, also known as somnambulism, which many people experience, and even more so every night. Dream talking is a normal phenomenon that occurs during sleep while dreaming. Dreams are subconscious expressions of emotions, and the content of dream talking will be related to the dream state. The dream talker often does not remember what was said after waking up, and belongs to the type of sleep disorder. There are three main categories of reasons for dream talking at night, physical factors, psychological factors and somatic factors. 1, psychological factors: it is often said that “there are thoughts in the day, there are dreams in the night”, if you are always thinking about something or work pressure, resulting in mental tension and emotional instability, it is possible to 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, in a chaotic and If the brain is in a state of hyperactivity due to a brighter light environment, if the cortical cells establish contact with the nerve cells that control language, the phenomenon of dreaming will occur; 3, physical factors: some people talk in their sleep is related to neurasthenia, many impulses and instincts will be repressed in reality, but will be gradually released in the dream. In short, dream talking is a normal phenomenon caused by a variety of factors, do not worry about this situation, around someone talking in their sleep also do not panic, take some means can be alleviated.