MINNEAPOLIS - Migraine headache may double the risk of a nervous system condition that causes facial paralysis, called Bell's palsy, according to a new study published in the December 17, 2014, online issue of Neurology®, the medical journal of the American Academy of Neurology.
Bell's palsy affects between 11 and 40 per 100,000 people each year. Most people with Bell's palsy recover completely. Headaches are the most common disorder of the nervous system and affect about 12 percent of the US population.