It is true...and it is a dicey thing to educate people about. The leader of NOW (national organization for women) was approached with just this topic by a very forward thinking medical group. the NOW president basicly said there was no way that they were going to publicly advocate women having babies at an earlier age. Even if it meant saving their lives!
Like I said previously this book raises some issues which can bring a polite conversation to flash-point for a lot of folks. It will be interesting to see how it all progresses.