A New Dynamic Mathematical System of Zang-Fu Organs Based on San-Yin Opposition and Upper-Lower Correspondence

Breaking away from the traditional five-element generation-restraint framework of traditional Chinese medicine, this study establishes an original visceral theoretical system centering on San-Yin opposition, upper-lower correspondence and dynamic mathematical rules. Methods: Six zang organs are divided into two opposite subsystems: the lower somatic triad (Heart, Liver, Spleen) governing physique, qi-blood and material form, and the upper spirit triad (Pericardium, Lung, Kidney) dominating mentality, essence and visceral qi movement. Three paired San-Yin connecting links realize point-to-point visceral correlation between upper and lower systems. A fixed physiological mathematical formula 1+0.5+1=2.5 is defined for each triad. Results: Visceral functional changes of lower organs drive synchronous adjustment of their corresponding upper counterparts; the value of 0.5 represents physiological transitional buffer for qi transformation. Persistent fixation of any single organ at the 0.5 state indicates stagnation of its corresponding San-Yin channel, which provides an innovative target for syndrome differentiation of diseases. Conclusion: This model abandons cumbersome five-element restrictive relations, reconstructs the fundamental operating logic of visceral qi transformation via opposition-to-correspondence transformation and constant dynamic numeration, forming a self-consistent, deducible and clinically applicable novel theoretical paradigm for traditional Chinese medicine.