Doctors have a name for that burst of brain pain that comes from gulping a cold treat on a hot day: ‘’sphenopalatine ganglioneuralgia.’’ The phenomenon is better known as brain freeze or an ice-cream headache – two names that do a great job of describing exactly what’s happening in your head. Your mouth and tongue are loaded with blood vessels, including arteries at the back of the throat that circulate blood straight to your brain. Chugging an icy treat unleashes a mini-blizzard in your mouth, so the arteries near your throat constrict to protect your brain from an extreme temperature change. You feel that contraction as a brain freeze.
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