Brain freeze, also known as an ice cream headache, is the sudden onset of pain in the forehead and temples, which occurs when consuming a cold drink or frozen treat too quickly. A few synonyms for brain freeze are sphenopalatine ganglioneuralgia, cold stimulus headache, and ice cream headache. Sphenopalatine ganglioneuralgia has Greek roots, meaning pain caused by the nerve cluster in the face that is responsible for the sensation. Cold stimulus headache, as the name suggests, refers to the discomfort experienced by exposure to cold stimuli. Lastly, ice cream headache is the commonly used term and is self-explanatory. Therefore, these different synonyms refer to the same phenomenon and allow people to communicate their headache precisely.