老年性气虚证是机体老化过程中常见的虚证。简单地理解,人们随着年龄增长,伴有脏腑生理性机能衰退和病理性正气虚弱,两种因素又是互为因果地恶性循环变化,逐步地发展为老年性气虚综合征或老年疾病。正如《素问·阴阳应象大论》指出:“年四十而阴气自半也,起居衰矣;年五十,体重,耳不聪明矣: Elderly qi deficiency is a common deficiency in the body’s aging process. It is simply understood that with increasing age, people are accompanied by a decline in the physiological functioning of organs and pathological positive health. Both factors are vicious cycle changes of each other, and gradually develop into senile qi deficiency syndrome or geriatric diseases. As the ”Su Wen Yin and Yang should be like a big theory,“ pointed out: ”Year 40 and the yin from the half also, living upset; 50 years, weight, ears are not smart: