Migraine and cognitive decline among women: prospective cohort study.
Authors: Rist PM, Kang JH, Buring JE, Glymour MM, Grodstein F, Kurth T.
Migraine is a chronic-intermittent primary headache disorder that affects about 20% of the female population. Up to one third of those with migraine experience aura (that is, transient neurology symptoms mainly of the visual field) before or during a migraine attack. Besides the headache, migraine is believed to usually be a benign condition. However, previous studies have linked migraine, especially migraine with aura, to an increased risk of ischaemic stroke.