Aresearcher conducts an experiment to find out how many people experience "brain freeze" after eating a cold dessert. one group of people are given ice cream cones to eat, and the other group is given pie to eat.

The people who are given ice cream to eat mostly experience brain freeze. When something cold touThe people who are given ice cream to eat mostly experience brain freeze. When something cold touches the roof of your mouth (your palate), the sudden temperature change of the tissue stimulates nerves to cause rapid dilation and swelling of blood vessels. This is an attempt to direct blood to the area and warm it back up. The dilation of the blood vessels triggers pain receptors, which release pain-causing prostaglandins, increase sensitivity to further pain, and produce inflammation while sending signals through the trigeminal nerve to alert the brain to the problem. 

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