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What is brain freeze?

A brain freeze, also known as an ice cream headache, happens when cold foods pressing on the roof of your mouth trigger overlying nerves to rapidly widen blood vessels and to increase blood flow, perhaps in an attempt to warm up the head in response to the cold.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.