Brain freeze is a splitting headache that happens when you eat or drink something cold too fast. When you consume a cold food or beverage, you cool down the blood flowing to your brain.

Scientifically known as sphenopalatine ganglioneuralgia, brain freeze is caused by a rapid change in blood flow to the ...

You may know brain freeze by one of its other names: an ice cream headache, a cold-stimulus headache, or sphenopalatine ganglioneuralgia, but no matter what you call it, it hurts like hell.