Yan Zhitui, a famous scholar in the Southern and Northern Dynasties, attached great importance to health preservation, and wrote the earliest Yan family instructions in ancient China. The "health preserving chapter" in the book focuses on the way of health preserving, and introduces the fruit of Sophora japonica to people, which shows that taking the fruit of Sophora japonica can make people have bright ears, black beard and black hair, and is beauty beauty and anti-aging. "Shennong Materia Medica Classic" lists Sophora japonica as the top grade, saying: "Long-term administration can improve eyesight and benefit qi, make the head not white and prolong life." Modern pharmacological research shows that Sophora japonica can reduce the permeability of blood vessel wall, promote blood coagulation, clear heat and purge fire, cool blood and stop bleeding, and has a good effect on the treatment of anorectal hemorrhoid bleeding. It can also lower blood pressure, and can enhance blood pressure lowering function when combined with other antihypertensive drugs.