Stress experienced by parents during pregnancy and up to two years after the baby is born can have negative consequences for the mother and the child. The time from pregnancy up until about two years after the birth (also known as the 'first 1000 days') is a sensitive period during which (expectant) parents can experience high stress and anxiety, and during which children are at greater cardiometabolic risk. There is little research examining effects of maternal stress and anxiety on child cardiometabolic outcomes, with even less research examining effects of paternal stress and anxiety.