Home▸Medical Technology & Imaging Physics▸Orthostatic Hypotension: Why Standing Up Too Fast Makes You Dizzy

🧍 Orthostatic Hypotension: Why Standing Up Too Fast Makes You Dizzy

Explore why standing up quickly can trigger dizziness, how gravity pools blood in the legs, and how the baroreflex normally rescues blood pressure within seconds.

Medical Technology & Imaging Physics3DModerate60 FPS

This simulator visualizes how blood volume shifts from the central circulation into the legs and abdomen upon standing, and how the baroreflex response speed and strength determine whether blood pressure recovers or dips into dizzy territory.

🔬 What It Demonstrates

🎮 How to Use

Adjust variables like hydration level, age, and autonomic reflex strength, then trigger a stand-up event to watch venous pooling, cardiac output, and blood pressure respond in real time.

💡 Did You Know?

The baroreflex can begin correcting blood pressure within one to two heartbeats of standing, making it one of the fastest homeostatic reflexes in the human body.

⚙ Under the hood

Explore why standing up quickly can trigger dizziness, how gravity pools blood in the legs, and how the baroreflex normally rescues blood pressure within seconds.

orthostatic hypotensionblood pressurebaroreflexdizzinessautonomic nervous systemcardiovascular physiologyagingdehydration

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