If I could add to that, though, there was a very unfortunate by-product of some of the graphic health warnings here in Australia. Some of the warnings were along the lines of “Smoking makes your baby smaller”. There was a sociologist at the Australian National University who discovered that a lot of young pregnant women started smoking for the sole purpose of actually having a smaller baby in order to avoid pain in childbirth.
We also need to think carefully about the unintended consequences of what seems on paper to be a good idea.