The first is that nightmares can show human diseases through dreams. Usually, even before some diseases are born, some unknown symptoms will appear in the body, but these symptoms are not obvious because the diseases have not developed during this period.
However, when the human body enters a rest state at night, most cells in the body will enter a rest state. At this time, if the cells from the disease are active, it is easier to stimulate some unstable cells in the cerebral cortex. At this time, it will show that the human body has begun to get sick through nightmares.
The second point is that the human body is stimulated by the external environment or from the inside of the body during the day. In the dream, a woman can often feel a big wave hitting her, washing her body into the sea, and no one comes to save herself. Through some surveys, the researchers found that the woman was under great pressure in her daily work and life, which made her nervous, but for various reasons, she was unwilling to talk to others or offer help. In this case, only by releasing her predicament and pressure can she stop having similar nightmares.