One of the most common causes of premature birth in the UK, pre-eclampsia affects 70, 000 British women a year and claims the lives of up to 1, 000 babies and ten mothers.
Undiagnosed and treated postpartum depression "causes enormous distress to the family, and it can have long-lasting consequences for the child, " said Meltzer-Brody.
In March his aides let slip that he would make a big announcement during a stop at the state Capitol in Atlanta, Georgia, only to retract the whole plan for reasons that still remain opaque.
Part of the problem is that Mr Pinker's thesis—that language is a window into human nature—is so broad as to admit practically anything with a linguistic bent to it as evidence.