Brain freezes reveal surprising health clues about migraines and family history
Brain freezes are common and usually harmless, caused by rapid cooling of the roof of the mouth that activates the trigeminal nerve; they may run in families and are more painful for migraine sufferers, providing a practical model for migraine research. To prevent or ease symptoms, pace cold foods and warm the mouth, and consider any migraine history that could indicate a treatable condition, since cold drinks can also trigger heart palpitations in some people.
