SUBSCRIBERDunedinResearch may lead to treatments for postnatal mood disordersNew research has found a hormone is responsible for making mothers’ interactions with newborns feel rewarding, rather than just necessary. Photo: Getty ImagesJohn LewisThursday, July 23, 2026SHAREfacebooktwitterwhatsappemaillinkedinfacebooktwitterwhatsappemaillinkedinPHOTO