Well from my experience with frozen drinks, ie Slurpee’s and Frozen Cokes I can say this… Take your tongue and feel the top of your mouth, just past the hard palate is a soft spot. When you get a brain freeze, take your tongue and warm this spot up(friction), brain freeze gone. So, not sure what that particular nerve cluster is, but it appears to be the one that causes brain freezes because the cold substance has to be in your mouth to achieve a brain freeze. Study done, awaiting peer review. Go buy a frozen drink, drink it fast, get brain freeze, take tongue and warm up spot and report back…
