Fathers' decline in testosterone and synchrony with partner testosterone during pregnancy predicts greater postpartum relationship investment
Tania A Reynolds
Among new parents, fathers' testosterone declined over partners' pregnancy and correlated w/ partners' changes in testosterone. Men whose testosterone decreased more (vs less) sharply were more invested in and committed to their relationships postpartum.
Zhana Vrangalova PhD
Dads' decline in #testosterone across partner's pregnancy --> higher postpartum rltnshp satisfaction in mom & dad!