The practice of parent and child sharing a sleeping surface, or 'bed-sharing', is one of the
most controversial topics in parenting research. The lay literature has popularized and …

Largely based on pre-theory that ties high testosterone (T) to masculinity, and low T to
femininity, high T is mainly studied in relation to aggression, mating, sexuality, and …

How can we best discover the ultimate, evolved functions of endocrine signals within the
field of human behavioral endocrinology? Two related premises will guide my proposed …

Mothers face trade-offs between infant care and subsistence/economic activities. In
traditional populations, allomothers such as fathers and grandmothers support mothers with …

Within accounts of personality development and socialization over the past century, the
central role of parent–child relationships has been emphasized with great consistency …

This article is part of a Special Issue “Parental Care”. We review recent research on the roles
of hormones and social experiences on the development of paternal care in humans and …

Rapid testosterone fluctuations in response to social stimuli are observed across a wide
range of species, and the highly conserved nature of these fluctuations suggests an …

Owing to humans' unique life history pattern, particularly comparatively short interbirth
intervals, early weaning, and prolonged support of multiple dependents, human females …

Testosterone is thought to be positively associated with “mating effort”, or the initiation and
establishment of sexual relationships (Wingfield et al., 1990). Yet, because testosterone is …

This article provides a novel synthesis of anthropological research on infant sleep, focusing
on work in biological and sociocultural anthropology in the past decade. First, we briefly …