Why do you sleep at night without dreams? It has been going on for several years, but my memory is still out of order.

Dreaming is a normal and indispensable physiological and psychological phenomenon of human body. After people fall asleep, a small number of brain cells are still active, which is the basis of dreaming. Normal dream activity is one of the important factors to ensure the normal vitality of the body. Dreams are a way to coordinate the balance of human psychological world. To some extent, dreaming contributes to brain function.

Some cells in the brain don't work when awake, but when people fall asleep, these cells are "practicing" their own functions, so dreams are formed.

Dreamless sleep is not only of poor quality, but also a sign of brain injury or disease. If the brain's regulatory center is damaged, dreams will not form, or only some incomplete dream fragments will appear. If you sleep for a long time without dreams, it is worth people's vigilance. Of course, if you have nightmares for a long time, it is often a sign of weakness or some diseases.