Migraine is a frequent brain illness that can be debilitating. Headache accounts for 4.4 percent of all general practice visits, almost 5% of all medical hospital admissions, and over 20% of neurology outpatient consultations. Migraine affects about 20% of people at some point in their lives, epidemiological research reveal that 4.5% of Western Europe's population suffers from headaches at least 15 days per month, while global studies suggest that about 1% of the world's population suffers from chronic migraine.
