Hackneyed theory of the day: Women's headaches are triggered by an increase in the testosterone levels of any nearby males. Crazy you say? Let's examine a few examples. A man's testosterone goes through the roof while watching or engaging in sports, during sex, and while driving "aggresively." How many times have you been to a football game and heard girls (who presumably hate football) nearby with their boyfriends complaining that they have a headache? And I think we all know "not tonight, I have a headache" is the number one shutdown in the bedroom. I dare you to disprove this theory.