Reaching for an icy glass of water, or ice cream in this sweltering heat? Here's why it can give you a HEADACHE

The pain message travels along the trigeminal nerve, which is responsible for the feeling in your face and head. The brain gets suddenly confused, and thinks the pain is coming from your forehead, not your mouth. This is called “referred pain,” and feels like it comes from the head, rather than the mouth

Most Recent