There are three magic weapons for health preservation, namely, nourishing essence, benefiting qi and restoring energy. Winter is the season for collecting all things, and it is also the best time for us to keep "spirit" and reserve energy for the coming year. Zhang Jingyue, a famous medical scientist in the Ming Dynasty, once said, "Those who are good at keeping in good health must cherish their essence, be full of essence, be mentally complete, and be mentally healthy and less sick." Chen Jiru, a famous figure in the Ming Dynasty, also pointed out in his book The Language of Health Preservation: "Essence can be angry, and qi can be spiritual, so essence can also be the foundation of spirit. Keeping the essence and storing the gas, storing the gas and nourishing the spirit is the key to longevity. " Its central meaning is that essence, qi and spirit are an inseparable whole, essence is full of qi, and qi is full of qi. In the diet, we should pay attention to eat more nourishing foods, such as black sesame, black beans, yam, walnuts, Euryales, lotus seeds and so on. In addition, we can also drink soup with yellow soil, which can also achieve a good effect of tonifying kidney and replenishing essence.