It is recommended to go to sleep before 11:00 p.m. The ideal time to go to sleep is around 9:00 or 10:00 p.m. Because the body enters deep sleep after 11:00 p.m., various organs are detoxified, especially the liver, and if you do not sleep, it will affect the metabolism of the liver, which will develop from a subhealthy state to a disease over time. If you do not sleep at night, the vagus nerve excitement, can also lead to heart problems. There are more sudden deaths in youth, mostly due to staying up late. It is recommended to sleep for 6-8 hours at night, and if you are a teenager, you must keep it around 10 hours, because teenagers need to grow up. A good sleep can enhance resistance and have a certain improvement effect on atherosclerosis. Patients are advised to eat more fresh vegetables and fruits in general, which will have some improvement effect on sleep.