According to myths and legends, "Shennong tasted a hundred herbs and encountered seventy-two poisons every day, so he solved it with tea." The tea here is tea. In other words, in the struggle with nature, the ancestors of China chose wild tea trees from wild plants and further cultivated them. It can be inferred from myths and legends that tea first existed as a medicine, and then gradually developed into a high-grade beverage. In the Central Plains, it is generally used as a health drink, and the border nomads use tea as a vitamin supplement to adjust the discomfort caused by long-term consumption of meat.