Testosterone and Fatherhood
Reading Time: 2 minutes Upon discovering that they are about to become fathers, men often experience a drop in two hormones: testosterone and estradiol. This happens even before their babies are born, according to a new University of Michigan study. Past research has demonstrated that men's hormones change after they become fathers, and there is some evidence that this is a function of a decline after the child's birth. What is unique about the new U-M study is this: it is the first research to show that the decline may begin even earlier, during the transition to fatherhood, said Robin Edelstein, the study's lead...


