Traditional postpartum care: Alloparenting has been considered as an important factor in raising children; additional help can enhance further reproductive opportunity of new mother & her key role on enhancing the fitness of the newborn

Traditional postpartum care: Alloparenting from an evolutionary perspective. Sangkwon Woo, Mark V. Flinn, Robert S. Walker. Human Behavior and Evolution Society 31st annual meeting. Boston 2019. http://tiny.cc/aa1w6y

Abtract: Variation of traditional postpartum care practices vary across different regions. Paternal and alloparental support, however, are common components in human cultures. Whereas many ethnographic studies have accumulated information on cultural variation during antepartum/postpartum period, such as food taboo and couvade, systematically comparative data sets have not been broadly considered on these cultural traits, mainly due to the limited comparability of diverse variables. Alloparental care has long been considered as an important factor in raising children, but it is also essential in that additional help can enhance further reproductive opportunity of new mother and her key role on enhancing the fitness of the newborn. Here we examine how traditional care practices might have helped the health of mothers and infants. Traditional care practices in East/Southeast Asian population and indigenous populations in American continents involve not only intensive treatment and isolation but also strong cold-avoidance, or ‘hot-cold theory’ based care. We collected information on temperature management after childbirth during postpartum care practice and utilized the Standard Cross-Cultural Sample (SCCS), a globally representative data of human populations. Using a phylogenetic supertree including the SCCS, the cultural evolutionary processes on the postpartum care are examined to indicate the association between genetic/linguistic phylogeny and vertical/horizontal transmission of cultural traits.