Migraine is the 3rd most prevalent illness in the world. 12% of the population, including children, suffers from migraine, and more than 4 million people have chronic daily migraine, with at least 15 migraine days per month. Migraine is most common between ages 25 and 55 and affects three-times as many …read more …

http://speakersnetwork.com/forms/Migraines.pdf