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Aging & Thermoregulation: Hypothermia / Heat-Stroke Risk Simulator

Interactive two-compartment bioheat simulator showing why older adults lose thermoregulatory reserve: blunted vasoconstriction, fewer active sweat glands and weaker shivering push core temperature toward hypothermia or heat stroke faster than in a young adult.

Medicine & Biophysics3DModerate60 FPS📱 Mobile-adapted⇄ 2D version

This simulator models the two-compartment (core/shell) bioheat balance that keeps human core temperature near 37 °C, and shows exactly how that regulatory reserve narrows with age. Adjust ambient temperature, activity level and clothing to stress the system, then compare a young adult against a frail elderly patient by moving the age slider — the reduced vasomotor gain, fewer active sweat glands and weaker shivering response built into the model reproduce the real clinical pattern: older adults drift into hypothermia in the cold and heat stroke in the heat measurably faster, and with a smaller safety margin, than younger adults exposed to the identical environment.

⚙ Under the hood

A two-compartment (core/shell) bioheat simulator showing how age-related blunting of vasoconstriction, sweating and shivering narrows the thermoregulatory safety margin, pushing older adults toward hypothermia or heat stroke faster than younger adults in the same environment.

geriatricsthermoregulationhypothermiaheat-strokephysiologyaging

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install