"Sphenopalatine ganglioneuralgia" is the medical term for brain freeze

"Sphenopalatine ganglioneuralgia" is what you really mean you are suffering from when you say that you have a brain freeze, which is sometimes also referred to as an “ice cream headache”. This occurs when a prolonged cold sensation hits the roof of your mouth or the back of your throat, resulting in an uncomfortable change in temperature. Sensory neurons in those places then ping up to the brain that there is an injury, and your brain creates pain in response.