Most people suffer from headaches. In fact, it has been estimated that almost half of the adult population has had a headache at least once within the last year, according to the World Health Organization. Typically, they’re a result of stress, certain foods or alcohol, changes in sleep or skipped meals — but there are other triggers that you probably didn’t know. The following facts about some of the more unusual headache causes has been compiled from Prevention and Everyday Health.
