Headache & Migraine
What are Headaches & Migraines
According to the World Health Organization, headache disorders, characterized by recurrent headache, are among the most common disorders of the central nervous system. Headache itself is a painful and disabling feature of a small number of primary headache disorders, namely migraine, tension-type headache, and cluster headache. Headache can also be caused by or occur secondarily to a long list of other conditions, the most common of which is medication-overuse headache.