Several days and nights without sleep can lead to an increased chance of sudden death. In a normal person without sleep, the cells of brain tissue are in an excited and active state, the sympathetic nerves are abnormally excited and the vagus nerve may also show increased tone, which can lead to the occurrence of cardiac arrhythmias and lead to sudden death events. It has been certified by scientists that a person who does not sleep for a long period of time can lead to sudden death in about 10 days. Therefore, sleep plays a decisive role in the adjustment of human body functions. For patients with chronic sleep deprivation, it is important to adjust the time of work and rest and maintain sufficient sleep to prevent the central nervous system dysfunction leading to accidents.