Why do I get brain freeze?
Last updated September 3, 2026.
Cold on the palate makes blood vessels constrict then dilate, and shared nerve wiring projects the pain to your forehead. Mayo Clinic calls it a cold stimulus headache: brief and stabbing, triggered by eating, drinking, or inhaling something cold. It peaks in under a minute and passes in a couple. Pressing your tongue to the roof of your mouth or sipping lukewarm water ends it faster; smaller bites and slower sips prevent it. The boundary: no cold trigger, no brain freeze. Stabbing headaches without one, or headaches that are new or worsening, deserve a GP conversation.
What to do
- Press your tongue to your palate or sip lukewarm water to end it faster.
- Take smaller bites and sips of very cold food and drinks.
- Let ice cream warm in the front of your mouth before it hits the palate.
- See a GP for stabbing headaches without a cold trigger, or any new, worsening headache pattern.
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