[摘 要] 阴阳学说构筑了中医学理论体系的基础框架，用阴阳概括生理功能，即物质属阴，功能外在表现属阳。气就其生理机制而言，它是机体的代谢过程，是阴阳转换的桥梁。精、血、津液通过摄入和转化而获得，再通过气化既代谢，机体才能做出各种行为动作和产生各种行为状态。气化停止既代谢停止，生命乃绝。治病求本，善辨气、调气，不失为一种治疗大法。就现代医学理论而言，物质和功能转化的桥梁就是新陈代谢，调整和增强新陈代谢就是中医的调气、补气过程，也就是现代医学的治疗大法。

    关键词：阴阳、气、血、精、津液 生理病机 新解

    New Explanation of Physiological Sickness-mechanism of Yin and Yang，Vital Substance，Blood，Body Fluid

    Liu Chengjun

    Yanzhou People’s Hospital，Yanzhou Jiankang Rd.1,Shandong,P.R.Chna(272100)

    [Abstract] The theory of Yin-Yang has constructed the basic frame of theoretical system of Traditional Chinese Medicine (TCM). Yin-Yang generalizes Physiological function ,i.e.substance belongs to Yin,the explicit representation of function belongs to Yang. As the Physiological mechanism of Qi,it is the metabolic course of body and the bridge of Yin-Yang conversion. Vital substance, blood, body fluid are obtained by ingestion and transform, then economy finish various action and bring various state through activity of Qi i.e . metabolic activity. Activity of Qi stops i.e. metabolic activity stops, the life stops. To treat disease one should find out its cause, differentiate Qi and adjust Qi, that is agreat method of treatment. At this point of modern medicine theory, the bridge of matter and function conversion is metabolism. To adjust and enhance metabolism is the process of differentiating Qi and replenishing Qi of TCM, that is a great method of treatment of modern medicine. ......