Other common characteristics include a failure to support
partners during stressful times and an inability to share feelings, thoughts, and emotions with partners.
Additional reasons for deciding not to breastfeed can include concern about the quality and quantity of breast milk, and
partner and family support, which are common across developed and developing countries.10, 11 Women who decide not to breastfeed are also more likely to have smoked
during their pregnancy, be primiparous mothers (i.e., having their first child), and to have a child born low birth weight or with complex health issues such as cystic fibrosis.9, 12 Prenatal and post-natal
stressful experiences may also reduce the duration of breastfeeding.13 Finally, several studies suggest that mother's who return to work within the first 6 months postpartum or anticipate an early return to full -
time employment, are less likely to breastfeed.
But in
stressful times,
during which human survival is less guaranteed, men would be more willing to risk a physically dissimilar
partner in order to father as many children as possible.