Fads in psychiatric diagnosis come and go and have been with us as long as there has been a psychiatry. The fads meet a deeply felt need to explain, or at least to label, what would otherwise be unexplainable human suffering and deviance. In recent years the pace has picked up and false “epidemics” have come in bunches involving an ever increasing proportion of the population. We are now in the midst of at least three such epidemics- of autism, attention deficit, and childhood bipolar disorder. And unless it comes to its senses, DSM5 threatens to provoke several more (hypersexuality, binge eating, mixed anxiety depression, minor neurocognitive, and others).