How Men Can Decode Women's Menstrual Cycles
Photo Quiz! Can you tell which one of these women is ovulating and which one is menstruating? Wikimedia CommonsThe clues are in her voice "Are you on your period?" It's a question most women have been asked at one point or another by their boyfriend or spouse during a disagreement. It turns out that some men actually can tell when it's a woman's time of the month-and it's not because of bratty behavior. In a study published online last month in the journal Ethology, psychologists Nathan Pipitone at Adams State College and Gordon Gallup at SUNY Albany asked three groups of men to listen to voice recordings of 10 women counting from one to five. Each woman was recorded four times over the course of one full menstrual cycle. (For those who aren't familiar with the ins and outs of the female reproductive cycle, women are most fertile during ovulation, when...