Dreams are the result of the cooperation of neural networks composed of cerebral cortex, hypothalamus, thalamus and brain stem. During sleep, neurons in these parts will communicate with each other through electrical signals, thus producing senses such as vision, hearing, touch and taste. What we experience in our dreams, there are all kinds of characters, scenes and plots.
Studies in recent years show that dreams have certain health care effects on people's body and mind, including relieving stress and promoting the consolidation and creation of memories. Therefore, dreams are one of the important manifestations of brain self-regulation and self-repair.