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    What causes brain freeze?

    By Chanie Kirschner, Mother Nature Network
    (Photo: Getty Images)(Photo: Getty Images)

    Q: What exactly causes brain freeze? And here's a better question - how do I prevent it from happening in the first place?

    A: Ahhh, the dreaded brain freeze. I've experienced too many of those myself, unfortunately. The bad thing about ice cream headaches is that they hurt - a lot. The good thing about ice cream headaches is that they are usually over in a matter of seconds, or at most a couple minutes.

    For me, they always seem to come on slowly, with the pain starting at a 3 and working its way up to an 8 or 9 almost instantaneously. (You can tell I've been questioned about my level of pain in the ER a time of two.) But they usually subside as quickly as they come, and thank God for that.

    And ice cream headaches don't come only from ice cream - they can come from eating any really cold food or drink. Like Slurpees. In fact, in 1994, 7-Eleven even trademarked the term Brainfreeze to use in conjunction with its delicious frosty drink.

    So what causes ice cream headaches in the first place? It has to do with the nerve receptors above the roof of your mouth. When you take a bite of ice cream, some of it touches the top of your mouth, otherwise known as the hard palate. That in turn triggers the nerves above the palate to cool down - and quick. The nerves send an emergency message to the brain that it's about to get cold up there, and the blood vessels in the brain constrict to accommodate. When the warm blood rushes through the blood vessels again - presto! You get a searing headache similar to a migraine. Ouch! But don't worry though, this kind of headache does not signify a serious problem.

    So what to do? Well if your ice cream headache has already started, chances are it'll be over quickly. To speed things up a bit, you can touch your tongue to the roof of your mouth and hold it there, warming up your palate and calming down the brain's reaction.

    To keep yourself from getting the freeze in the first place, try eating cold foods slower than usual and keep that ice cream away from the roof of your mouth if you can. Seem impossible? It's not: I tried it to research its efficacy for this article, and not only is it possible; it works. (That's right, I gave myself a brain freeze for this article. That's how dedicated I am. As dedicated as Matt Damon gaining 40 pounds for a role.)

    So have no fear. You can still enjoy your favorite ice cream sans the splitting headache. Just be sure to save some for me.

    - Chanie

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    663 comments

    • John  •  8 months ago
      I've always contended to my wife and family it actually happens to me as I have this larger than normal(i.e. smarter) brain, now you are pushing this bunk!!!!!
    • A Yahoo! User  •  8 months ago
      Speaking from experience, it also works to keep your thumb on the cold glass or dish. It prevents the brainfreeze effect. From what I was told years ago it blocks or nullifies the effects of the nerve receptors. Don't really know why, but I haven't had a brainfreeze and I down lots of cold stuff all the time.
    • Sheila  •  8 months ago
      when eating ice cream hold your spoon upside down so the bottom of the spoon is near the roof of your mouth. That helps from getting brain freezes also.
    • AINLY  •  8 months ago
      INSTANT BRAIN FREEZE RELIEF-GUARANTEED!!

      If you're "frozen up" simply /slowly exhale warm air through your mouth (the EXACT same way you'd do to "see your breath" on a cold weather day) and your brain freeze will disappear after just a couple of slow exhales--guranteed!!!!
    • El Gringo  •  8 months ago
      You think the pain level is an 8 or 9? Were you in the ER for a stubbed toe?
    • Puca  •  8 months ago
      Thank you for your dedication and sacrifice for the benefit of the many who suffer this self induced torture every summer! I will definately try your suggestion to deal with the headache while enjoying my next frozen coffee dessert from Starbucks! Have a great summer!
    • juan chavez  •  8 months ago
      what causes the brain to freeze,,,,one reason is just being a teenager now days,,,,then the other is your parents allow you to become an alcholic at age 11,,the other is starting drugs use in the fifth grade...This is the typical american sociaty,,,,can`t forget these brain dead kids are getting their drugs from the parents also
    • Mike  •  8 months ago
      I get brain freeze when my wife watches Maury. The stupidity is just painfull!
    • KK D  •  8 months ago
      I totally called this one! I figured this out when I was a kid, that the pain went away faster when you put your tongue to the roof of your mouth and have been advising other ppl to do it ever since. A lot of times science will just explain things that ppl have figured out themselves over the centures; that's why I'm a big proponent of asking for advice, recommendations & wisdom from humans, not just computers.
    • Honest Alice  •  8 months ago
      I'm one of the few lucky ones who has never been afflicted with such a malady. But I do get painful 'chest freeze' which hurt probably just as much. Strange how our body reacts to things. I enjoyed reading the article, very informative.
    • Michael  •  8 months ago
      I'm not sure this explanation makes physiological sense. When the body gets cold it constricts peripheral blood vessels (hands & feet) in order to bring more blood and therefore more warmth to the vital organs i.e. the heart, lungs and the brain. If the nerve endings do detect cold and are in fact affecting the blood vessels it would be to dilate them not constrict.
    • A Yahoo! User  •  8 months ago
      If this is true then why do you still get brain freeze when you have dentures that cover the hard palate?
    • justin  •  8 months ago
      My "BrainFreeze" happens right behind my right eye. It hurts like hell!
    • The Pike  •  8 months ago
      Worst Brain Freeze I ever got was right after the Results of the 2008 Presidential Elections.....
    • liz  •  8 months ago
      i don't have a palate that touches anything...all plastic...so can't be it!! maybe down a bit more...like throat or farther down
    • Southaven Resident  •  8 months ago
      I want my two minutes back. What an absolutely worthless article.
    • cristine  •  8 months ago
      My kids say that THE BEST IS TO TAKE UR THUMB & PUSH UP ON THE INSIDE OF THE ROOF OF UR MOUTH WORKS INSTANATLY
    • A Yahoo! User  •  8 months ago
      Sonic Slushies can give simultanious brain and chest freezes. I almost wrecked my car it hurt so bad.
    • Watson  •  8 months ago
      who cares
    • Elaine  •  8 months ago
      I tried this before but it shoots the pain into my upper back. It hurts worse and lasts longer. I now hold the liquid in my mouth to warm it up a bit then swallow it....No brainfreeze and not back pain.