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Migraines affect around one billion people – but what happens in the brain during an attack was, until recently, poorly understood.

Peter Goadsby, a professor of neurology at King's College London’s Institute of Psychiatry, Psychology and Neuroscience, helped unravel what happens in the brain during a migraine attack and his insights are already benefiting patients.

(Image: Woman with head in hands, Credit: Ivan Nanita/EyeEm/Getty Images.)