The importance of high quality sleep. During the Warring States Period, Wen Zhi, a famous doctor, said to Qi Weiwang, "My way of keeping in good health is to put sleep first. People and animals can only grow through sleep, which helps the spleen and stomach digest food. So sleep is the first supplement to health. If a person can't sleep well for one night, it will be difficult to recover after losing one hundred days. "
2. Li Yu, a physician in Qing Dynasty, once pointed out: "The key to keeping in good health is to take sleep first. Sleep can be refined, sleep can nourish qi, sleep can strengthen the spleen and stomach, and sleep can strengthen bones and muscles. "
The first frost is a solar term, and the customs in every pla