The overall effect of cassia seeds is to clear heat and brighten the eyes, laxative and laxative. Chinese medicine believes that all sons moisten, all sons descend, and have a significant laxative effect. This product is sweet, bitter, cold in nature, bitter cold to drain heat, and can nourish kidney yin. Chinese medicine believes that the liver is open to the eyes, the pupil belongs to the kidney, kidney diseases are mostly deficient, cassia seeds can be used for eye disease deficiency. According to the theory of Chinese medicine, all sons are descending, which can treat headache and dizziness caused by hyperactivity of liver yang, and eye pain caused by exuberant liver fire, which is effective when used alone. Cassia seeds are cold and moist, rich in oil, and are used for constipation caused by blood deficiency, intestinal dryness, and dryness of fluid. Modern pharmacological research has proved that this product has a hypotensive effect, effective alone, and also has a hypolipidemic effect. Cassia seeds are cold in nature and should not be taken for external wind and cold, internal cold and spleen and stomach deficiency, etc. Pregnant women and those with pre-eclampsia abortion should use with caution, and those with allergic reactions to cassia seeds are prohibited.