Re:Another way to look at this: (Score 1)

Maybe thats how evolution has worked for us. Maybe when a woman is not able to conceive, she feels like crap and dresses down. Makes her less desirable, but this is a good thing from an evolutionary standpoint. When she is ready to conceive, she gets dressed up and feels good. PMS is evolution's way of telling a man that you don't want to mess around with this woman, she is no good.