The ugly time is from 1 am to 3 am. This is the peak of liver meridian. When people lie down, blood will flow back to the liver. I once recommended a book to you, The Source of Four Sages, written by Huang Yuanyu in Qing Dynasty. That's good. After Zhang Zhongjing, Huang Yuanyu really understood this. There is a sentence on it: "Blood begins in the heart and hides in the liver." So you know how to replenish blood. "Qi comes from the kidney and is born in the lung", so you will know how to replenish qi. This is just a sentence. You should have practical knowledge of pharmacists. Return to the source of the four sacred hearts. The original principle of keeping in good health is like this. ? When people lie down, blood belongs to the liver, so when we are ugly, we must be in a deep sleep state, so as to bring forth the old and bring forth the new, let the liver detoxify smoothly and store blood smoothly. Huangdi Neijing said: "The liver is the official of the general, so it can be sought." People with liver qi have quick thinking and quick reaction, so it is very important to nourish the liver. As I said before, if you wake up at 1 every morning, you can still sleep at 3 am and can't sleep for two years in a row, then you should be careful. This is a precursor to liver cancer. ?