Why Some Get A Freezing Headache?

"Ice cream" headache is a bit of a misnomer, though it remains a major culprit. Any number of items: frozen treats, ice, cold soda and many other cold foods and drinks can rain down the screaming, stabbing pain.The combination of cold drink or food hitting the roof of the mouth or back of the throat sets off the headache, which is also known as brain freeze. It triggers nerves that give the brain the impression of a very cold environment. To heat up the brain again, blood vessels start to swell, which causes the headache-like pain for approximately 30 seconds.