CRITICAL APPRAISAL OF PRAKRITI IN KRIYA SHARIR AND ITS CONTEMPORARY PHYSIOLOGICAL SIGNIFICANCE

Abstract

Background: Prakriti is the constitution-specific expression of the three Doshas described in Ayurveda and occupies a central position in Kriya Sharir because it explains stable inter-individual differences in normal structure, function, adaptability, disease susceptibility and response to diet, environment and therapy. Contemporary physiology increasingly recognizes comparable inter-individual heterogeneity through systems biology, metabolic phenotyping, autonomic variability, genomics, inflammatory profiles and precision medicine. A critical appraisal is therefore needed to distinguish meaningful physiological parallels from over-simplified one-to-one equivalence. Aim and Objectives To critically appraise the concept of Prakriti as described in Kriya Sharir. To explain determinants, classification and characteristic physiological features of Vata, Pitta and Kapha predominant constitutions. To relate classical constitutional observations to contemporary concepts of homeostasis, metabolism, autonomic function, thermoregulation, body composition, immunity and psychophysiology. To review selected genomic, biochemical and clinical correlates of Prakriti and identify limitations in present evidence. To highlight the relevance of Prakriti to personalized preventive physiology and precision health without making unsupported one-to-one biomedical equivalences. Materials and Methods: A structured narrative review was undertaken using classical Ayurvedic sources and selected peer-reviewed literature on Prakriti, Tridosha, constitutional physiology, Ayurgenomics and Prakriti assessment. Conceptual statements were compared with contemporary physiological observations while avoiding direct equivalence where evidence remains preliminary Results & Discussion: The most defensible contemporary interpretation is that Prakriti represents a systems-level phenotype emerging from interacting biological traits rather than a single organ, gene or biomarker. Standardized and validated assessment remains the major methodological requirement for future physiological research. Conclusion: Prakriti remains highly relevant to Kriya Sharir as an individualized model of normal physiology and adaptive capacity. Its modern significance lies in hypothesis generation for phenotyping and precision health, while clinical application should remain grounded in classical assessment and supported by stronger prospective validation.