For as long as humans have had heads that hurt on one side, we've been trying to fix it with varying degrees of nonsense. The Ebers Papyrus from 1550 BC suggested fried catfish on the scalp. Galen, a Roman physician who named the condition 'hemicrania,' recommended blood-letting, because that was his solution for everything. By the 20th century, doctors decided migraines were caused by repressed emotions, conveniently blaming women - who suffer far more than men - for being 'too fragile and neurotic.' Even a couple of decades ago, medical schools taught the 'vascular theory,' which blamed expanding and contracting blood vessels.

But the last decade has brought real progress. We now understand migraines as neurological disorders, a sub-category of headache, and we've got actual treatments to match. The biggest problem remains a lack of sympathy for sufferers - centuries-old stigma dies hard. The biggest difference? We finally know what's going on upstairs.