Brain Freeze Cause is a term used to describe the sensation of coldness and pain in the head caused by eating or drinking something cold too quickly. It is also known as 'Ice Cream Headache' and is caused by the rapid ingestion of cold food or beverages, such as ice cream, slushies, and smoothies. The acronym ICES stands for 'Icy Cold Eating Syndrome, ' which is another name for Brain Freeze Cause.