Liu An in the Han Dynasty recorded in Huainanzi: "The Yue people (that is, Cantonese, referring to Guangdong) thought that the viper (pronounced as' southern snake') was food, but China (referring to northern areas, Henan and Shaanxi) got nothing, thus knowing that southerners love snakes and northerners don't eat them. It is said that snakes can not only satisfy appetite effectively, but also Guangzhou people firmly believe that snakes are excellent food for nourishing and keeping in good health. The chapter of Shan Hai Jing mentioned in Historical Records reads: "Southerners can avoid' worry' when eating Bashu, so as to drive away the hunger of diseases. "So, generally speaking, you don't have to wait until autumn." Snakes "are buzzing in the capital of Guangzhou. Men, women and children have their own needs: snake gall: detoxification and beauty, clearing the liver and improving eyesight, resolving phlegm and quenching thirst; Snake wine: rheumatism paralysis, numbness of limbs, low back pain; Snake whip: yang and brain, kidney deficiency; Snake meat: dispel wind and dampness, dispel cold, relax tendons and activate collaterals, and relieve itching.