The Structural Foundation of Age-Related Decline: Calcification, Fibrosis, and Perfusion Loss as Root Causes of Epigenetic and Enzymatic Deterioration, with Environmental Dietary Disruptors as Upstream Triggers

Mainstream longevity research has catalogued the molecular hallmarks of ageing with extraordinary precision, yet overwhelmingly treats epigenetic drift, enzymatic decline, and metabolic dysfunction as primary events rather than consequences of deeper structural processes. This paper proposes that progressive structural deterioration — vascular calcification, extracellular matrix cross-linking through advanced glycation end-products (AGEs), tissue fibrosis, and consequent loss of vascular compliance and microvascular perfusion — constitutes the root cause of age-related molecular decline. We present a six-stage cascade model in which structural hardening precedes and drives the enzymatic and epigenetic collapse documented in the ageing literature. We further conjecture that modern ultra-processed foods and pesticide residues, particularly glyphosate, act as upstream triggers that simultaneously accelerate structural deterioration and directly corrupt the epigenetic maintenance machinery, creating a dual-trigger assault that explains both the universality of ageing and the acceleration of age-related disease (including cancer) in populations with high processed food consumption. We identify carnosine and its carnosinase-resistant analogue anserine as primary Stage 1 interventions that intercept the glycation cascade at its earliest point. An integrated five-tier intervention framework is presented, organised by dependency layer: structural integrity, perfusion restoration, metabolic substrate availability, epigenetic enzyme support, and damage clearance. The framework generates several testable predictions, including that interventions targeting upper layers (e.g., NAD+ supplementation) will show attenuated results in populations with unaddressed lower-layer deficits (e.g., advanced vascular calcification). Six novel contributions to the literature are identified, including the structural primacy thesis, a “continued growth” reframing of ageing, and the repositioning of cancer as regulatory failure rather than primarily a mutational event. Preliminary experiential observations consistent with the framework’s predictions are reported.