Why do people get brain freeze?


Quick Answer

Brain freeze, also known as an ice-cream headache, is the result of something extremely cold touching the upper palate of the mouth. When this occurs, a sudden increase in blood flow to the brain occurs, according to Medical News Today.

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Full Answer

Scientists at Harvard Medical School speculate that the dilated arteries allowing increased blood flow to the brain and resulting in brain freeze may be a self-defense mechanism to protect the temperature of the brain. Only one-third of people experience brain freeze, notes About.com; however, migraine sufferers are more likely to experience it, according to Medical News Today. The medical term for brain freeze is sphenopalatine ganglioneuralgia.

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