Traditional Chinese medicine health care experts believe that lying down and resting is only beneficial to health if it adapts to the law of yin and yang changes in nature. "Su Wen Gu Naive Theory" said, "Eat moderately, live regularly, and if you don't rush, you can be in harmony with God and make the best use of it, and you will die at the age of 100." For example, in Pingdan, the sun's yang began to appear in the shade. At noon, the sun's yang flourished, and at dusk, the sun's yang gradually weakened, and the yin gradually increased, and at midnight, the yin flourished. People should engage in daily activities when the sun shines during the day, and lie down and rest at night when the sun is weak, which is what the ancients said, "work at sunrise and rest at sunset", which can play a role in maintaining the balance and coordination of Yin and Yang movements.