When I did my student teaching at the high school level, I went home after that first week and apologized to my mother for having been fifteen. If I had behaved even a quarter of the way my classes did, then she deserved the apology.
Madness string 122959
Of course, to my knowledge, there's no data on any of this, because there is basically no solid data supporting any of the shit they tell pregnant and nursing women to do.