Why do women lose sex drive?

Because they are so busy breastfeeding their babies every hour or so that they have no time for anything else. Also they are exhausted from changing poopy diapers, rocking baby to sleep, washing baby clothes, making babies bed, registering birth certificates, herding admirers on a tour of baby's world and taking care of their husband who is right now as we speak, sitting and watching the Super Bowl asking wifie for some more chips and beer and getting horney watching all the girlie ads.