early 15c., from Middle French lesion, from Latin laesionem (nominative laesio) injury, from past participle stem of laedere to strike, hurt, damage, of unknown origin. Originally with reference to any sort of hurt, whether physical or not.
Most migraines last about 4 hours, but severe ones can last up to a week. How often they happen differs for everyone, but itâs common to get two to four headaches per month. Some people may get migraines every few days, while others get them once or twice a year.
Other symptoms include sensitivity to light, sensation of being overwhelmed by complex patterns, or eye pain. Hormonal changes, medications, chemicals in foods and even flashing lights can cause migraines. The migraine episode may only last a few minutes, but typically lasts about 20 to 30 minutes.