Ice-Cream Headache
    What could be more enjoyable and refreshing on a hot summer day than a large scoop of your favorite flavor ice-cream? Following this luscious taste and cooling sensation, however, you may experience a most unpleasant pain known as brain freeze or ice-cream headache. It even has a 30-letter formal name: sphenopalatine ganglioneuralgia. (Try pronouncing that one!)
    Brain freeze is a sudden pain in your forehead that fortunately lasts only 30 to 60 seconds. This sudden pain is a result of the cold temperature of the ice-cream hitting the palate of your mouth. The quick drop in temperature causes capillaries to constrict and then dilate rapidly. Nerves conduct signals from these dilating blood vessels to the brain which then interprets the pain as coming from the forehead.
    Some solutions to this brief but unwanted sensation:
    1. Eat slower.  
    2. Press your tongue against the roof of your mouth.
    3. Or drink some room-temperature water along with the ice-cream.