Sweden finds a simple way to improve new mothers' health. It involves fathers

The flexibility to have an extra person at home, even for a few days, offers significant postpartum benefits, new research shows. Petra Persson, Stanford University and affiliated to IFN, et al have studied effects of a 2012 Swedish law that allows fathers to take up to 30 days in the year after a birth, while the mother is still on leave, writes New York Times.