As a kind of food, betel nut has been rooted and developed in Hunan for more than 300 years. According to the records of Xiangtan city, in the first month of 1650 (the sixth year of Shunzhi), the Qing army slaughtered Xiangtan for nine days, with a population of tens of thousands, and there were no more than twenty or thirty households, less than 100 people. An Anhui businessman named Cheng learned that an old monk chewed betel nuts to avoid the epidemic and collected the body. Since then, the habit of chewing betel nut has continued. 1779 (forty-four years of Qianlong), Xiangtan residents suffered from abdominal distension. Bai Jing, the county magistrate, chewed the medicinal betel nut for the patient, and the abdominal distension disappeared. Later, the original patients often chewed, so that patients stopped chewing. After a long time, it became a habit.