Migraines are acutely debilitating headaches - sometimes with an "aura", in which patients have the impression of seeing through frosted glass - that strike up to 20 percent of the population.
Scientists describe the condition, which is three to four times more common in women, as a brain disorder in which neurons, or brain cells, respond abnormally to stimuli.
The precise cause it unknown, but inheritance is thought to play a significant role. Read on.
