The Human Body as Phototronic Engine: A Multi-Pathway Model of Solar Light Utilization from Galactic Input to Cellular Output

The human body interacts with solar radiation through at least five distinct, wavelength-specific pathways operating in parallel: (1) infrared radiation builds and maintains Exclusion Zone (EZ) structured water throughout the body (the Pollack pathway); (2) red and near-infrared light activates cytochrome c oxidase (CCO) in the mitochondrial electron transport chain, dissociating inhibitory nitric oxide and increasing ATP production (the Karu-Passarella-Hamblin pathway); (3) UVA radiation releases nitric oxide from the skin's nitrogen oxide reservoirs, producing systemic vasodilation (the Weller pathway); (4) UVB radiation drives vitamin D synthesis; and (5) blue-spectrum visible light entrains the master circadian clock through melanopsin and activates the radical-pair magnetoreceptors in retinal cryptochrome. A sixth pathway — the atmospheric electric circuit — delivers solar-derived charge through the craniospinal axis independently of direct photon absorption. This article synthesizes these pathways within the phototronic engine model (Gaspervic, 2026a), which proposes that the human body operates as a scale-invariant phototronic engine: it absorbs solar and Earth charge through bipolar intake zones — the inferior pole (feet) receiving the stronger, direct Earth surface charge and the superior pole (crown) receiving the filtered atmospheric signal — recycling both inputs through internal biochemical dynamics, and emitting the processed output equatorially as biophoton radiation, heat, and the heart's electromagnetic field. The model provides a unified framework for understanding why solar deprivation — through indoor living, glass filtering, and artificial lighting — produces a characteristic pattern of charge-deficit disease, and why different wavelengths target different constitutional vulnerabilities. Clinical and therapeutic implications are developed for each pathway.