We study biological aging of elderly U.S. Americans born 1904-1966. We use thirteen waves of the Health and Retirement Study and construct a health deficit index as the number of health deficits present in a person measured relative to the number of potential deficits. We find that, on...

Delayed parenthood is a central feature of the massive transformation of family and reproduction in rich countries. We analyse the shift of motherhood towards later reproductive ages during the last four decades and review its consequences for children and their mothers in low-fertility...