I think a lot of it has to do with the mom's mindset while nursing, not just the fact that she breastfeeds (so, a bottle - feeding mom could, potentially, have
a similarly positive side - effect if she is still using that time to bond with her child).
Our investigation proved that men shouldn't feel the need to conceal their softer
sides, profiles that included «affectionate» and «generous» saw an uplift in responses of over 20 % — «warm» and «genuine» had a
similarly positive effect.