text: What Is The Physiological Cause Of Migraine Headaches? - HealthCentral
  What Is The Physiological Cause Of Migraine Headaches?
  Health Encyclopedia: Migraine Causes
  Risk FactorsGenderAbout 75% of all migraine sufferers are women. Although the incidence of migraine is similar for boys and girls during childhood, it increases in girls after puberty. Migraine most commonly affects women between the ages of 20 - 45.Fluctuations of female hormones, such as estrogen and progesterone, appear to increase the risk for migraines and their severity in some women. About half of women with migraines report headaches associated with their menstrual cycle. For some...
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