By the way, doctor: What causes ice-cream headache?
Q. What exactly happens when I eat something cold and get an ice-cream headache? Is it harmful in any way?
A. Ice-cream headache, also known as "brain freeze" or cold-stimulus headache, is a headache some people get when they consume a cold food or beverage quickly. The pain is usually in the forehead or both temples, and it usually lasts less than five minutes.