The literature on human mate preferences is vast but most data come from studies on college students in complex societies, who represent a thin slice of cultural variation in an evolutionarily novel environment. Here, I present data on the mate preferences of men and women in a society of hunter-gatherers, the Hadza of Tanzania. Hadza men value fertility in a mate more than women do, and women ...

OBJECTIVE To identify the value that women with pelvic inflammatory disease (PID) assign to the health impact of future infertility. DESIGN Cross-sectional observations on patient preferences. SETTING Participants in an existing multicenter clinical trial of PID treatment options. PATIENT(S) Five hundred thirty-two women with signs and symptoms of PID who were identified from emergency de...

OBJECTIVE To investigate the attitudes and preferences regarding future contact with donation offspring among identity-release donors of oocytes or sperm. DESIGN Longitudinal cohort study. SETTING University-based fertility clinics in Sweden. PATIENT(S) A total of 210 women and men were questioned 5-8 years after their donation of oocytes or sperm. INTERVENTION(S) Questionnaires given t...

In women cyclical shifts in preference have been documented for odour and certain physical and behavioral male traits. For example, women prefer more masculinised male faces when at peak fertility than at other times in their menstrual cycle. In previous studies, the face images used have all been manipulated using computer graphic techniques. Here, we examine variation in preferences for perce...

A growing body of research has shown that women express stronger attraction to more masculine traits when they are tested near ovulation than when tested during other times in the menstrual cycle. Although these effects have been interpreted as increased preferences for markers of elevated testosterone during times in the cycle when conception is most likely, no previous studies have directly d...

In human females cyclic shifts in preference have been documented for odour and physical and behavioral male traits. Women prefer the smell of dominant males, more masculine male faces and men behaving more dominantly when at peak fertility than at other times in their menstrual cycle. Here we examine variation in preferences for body sexual dimorphism. Across two studies, both between- and wit...

BACKGROUND The current standard of care for management of patients with recurrent pregnancy loss is expectant management. However, the emotional impact of pregnancy losses and the urgency to conceive often leads couples to consider a variety of fertility treatments. The objective of this study is to report the time to next pregnancy and subsequent live birth and miscarriage rates in fertile pat...

We investigate whether Egyptian mothers display son preference in their breastfeeding behaviour, given the trade off between the protective effects of breastfeeding and its contraceptive properties. We also examine how intensity of exposure to gender-biased parental investments before childbirth affects maternal nursing behaviour, exploiting exogenous variation in mothers’ age at premarital gen...

The purpose of this paper is to analyse the impact of HIV/AIDS on fertility in Malawi. The future course of fertility will have an impact on both macroeconomic variables, such as GDP per capita, and various socioeconomic factors like mother-to-child-transmission of HIV, child mortality, the number of orphans, and public expenditures on schooling. Data on both prime-age adult mortality and HIV p...