This, Haddad says, is why people find it acceptable to get their water supply from their local river, even though that river water at one point mingled with the sewage of the town upstream.
Still, she said, her children got pancakes and trips to water parks because of their father, the son of parents more inclined to encourage self-discovery.
Many men and women have long bought into the idea that there are "male" and "female" brains, believing that explains just about every difference between the sexes.
"We've made quite a bit of progress, " CDC epidemiologist Dr. Celeste Philip, lead author of a CDC report on breast-feeding, said in a telephone interview.