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MigrainesAnswering Service > Call Center Resource > Health and Fitness > Migraines
Migraine is a form of headache, usually very intense and disabling. It is a neurologic disease of neuronal origin. The word "migraine" comes from the Greek construction hemikranion (pain affecting one side of the head)
Migraine is characterized by attacks of moderate or severe pain and must include one of the following: pain on only one side of the head, nausea, vomiting, photophobia and phonophobia, or pain worst with movement. The symptoms and their timing vary considerably among migraine sufferers, and to a lesser extent from one migraine attack to the next. Migraine had been thought to be caused by vasodilation in the head and neck, however newer research suggests the cause of the pain itself is from activation of the trigeminal nerve. The trigger of the migraine may be overactivity of nerve cells in certain areas of the brain (for example, the raphe nucleus). Dilation of the blood vessels is now known to be caused from chemicals released from nerve terminals and inflammatory cells.
(http://www.reference.com/browse/wiki/Migraine)
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