| Abstract: | This paper advanced the theory of dificit-ncy-bloodstasis-senility and considered that sufficiency of Qi and Yin, blood flow with easy and smooth are physiologic basis of body. The natural span of life is decided by Yuan Qi. People with snfficient Qi of internal organs of the body may, enjoy the natural span of life. Yin Jin is a material basis of life, sufficiency of Yin may cause the sufficiency of Qi. the normal ascent or decent and out or in of the mechanism of Qi is a necessary condition of health of body. The reducti on of physiologic function is caused by senility and the basis pathogenesis of senility is deficiency of Qi and Yin and blood stasis. The Qi and Yin of internal organs may reduce gradualy and normal ascent or decent and out or in of the machanism of Qi may be gradualy abnormal and may become Qi stagnate and blood stasis with adding of age. |
