“Despite the newness of the science and tentativeness of the conclusions that can currently be drawn, changing women's hormones changes women. And this is a big deal. Although we don't yet know that the pill does the research suggests that it probably has a hand in women's mate preferences, our sensitivity to smells, our relationship satisfaction, the functioning of our stress response, the activities of multiple neurotransmitter systems, the activity of multiple hormones, our moods, our persistence in difficult tasks, our ability to learn and remember and our sex drive. And this is probably just the tip of the iceberg.”