🧠🍦 Brain freeze is a protective reflex triggered by the rapid cooling and warming of blood vessels in the roof of the mouth.

The trigeminal nerve carries these pain signals to a central cluster where the #brain misinterprets the location as the forehead. The temporary sensation is the body's way of maintaining a consistent internal temperature for the brain.

👉 https://www.popsci.com/science/what-is-brain-freeze/

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