A unilateral, throbbing headache which gets worse with exerting. Nausea and vomiting. Difficulties concentrating. Sensitivity for light and sounds. For a lot of women this is monthly practice. Migraine affects women three times more often than men. Hormones are of influence. But how? Pharmacologist Antoinette Maassen van den Brink from the Erasmus MC in Rotterdam tells more about this phenomenon in Period! Read the full article here (in Dutch).