智力低下影响在校儿童学习成绩，我们使用具有中医养心益肾作用的天然药物（又是食品）组成增智合剂，给在校儿童服用，发现对智商（IQ）较低者获得明显的效果，现总结如下。1对象与方法1．1对象：为体检无其他疾病、智商（IQ）在70～120间的在校学习儿童，男女之比为1．8：1， Mental retardation affects school-age children’s academic performance. We used Zengyin Mixture, a natural medicine (also a food) with Chinese herbal medicine to nourish kidneys, and administered it to school children and found to have significant effects on lower IQ Now summarized as follows. 1 Subjects and methods 1.1 Object: no other diseases for the physical examination, IQ (IQ) in the school to study children between 120 to 120, the ratio of men to women is 1.8: 1,