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Thermoregulation Homeostasis 3D Simulator

Interactive 3D body-temperature homeostasis simulator: a 3D figure's skin panels shift between vasoconstriction and vasodilation while real sweat droplets fall under gravity, driven by the same hypothalamic negative-feedback loop that holds human core temperature near 37°C. Tune ambient temperature, exercise load, insulation and effector sensitivity in real time.

Biology3DEasy60 FPS📱 Mobile-adapted⇄ 2D version

Human core body temperature is held near 37 °C by a hypothalamic negative-feedback loop: a rise above setpoint triggers sweating and vasodilation to shed heat, a drop below setpoint triggers shivering and vasoconstriction to conserve and produce it. This 3D simulator renders the loop on an instanced-panel figure whose skin color and outward flush track vasomotor tone in real time, with physically simulated sweat droplets falling from the torso under gravity when the sweat effector activates and a visible shiver-jitter when the cold effector dominates. Orbit the camera around the figure and adjust ambient temperature, exercise heat load, clothing insulation and effector sensitivity to see how each reshapes the body's balance point and how a fever offset forces the loop to defend a different target.

⚙ Under the hood

A 3D model of a human figure displays heat production as core glow, skin flush from vasomotor changes as visible rings, and realistic sweat droplets falling in response to temperature fluctuations.

physiologybiologythermoregulationhomeostasis

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