1. The Xiaohe Cemetery in western China is an oversized mass grave complex that used a large number of ephedra branches to accurately accompany the burials one by one.Ephedra was first recorded in China's first work on Chinese herbal medicine, the Shennong Ben Cao Jing (The Divine Husbandman's Classic of the Materia Medica). The Chinese patent medicine “Lotus Clear Fever”, which uses ephedra as its main ingredient, has seen a nationwide rush of purchases. 2.The Tibetans of western China, an ethnic group on the Tibetan Plateau, rely on tea to improve their diet dueto overconsumption of animals, which has led to serious health problems and even threatened the survival of the ethnic group. 3.In the Sanxingdui archaeological discovery: today's Yi is one of the ten witches Wuluo descendants, contemporary popularity of buckwheat tea in China, it is the use of Yi food made of tea beverages.