Introduction Hormonal contraception is available worldwide in many different forms. Fear of
side effects and health concerns are among the main reasons for not using contraceptives or …

Millions of women worldwide use oral contraceptives ('the pill'; OCs), often starting at a
pubertal age when their brains are in a crucial developmental stage. Research into the …

This study examined the frequency of partner-directed mate retention behaviors and several
self-and partner-rated romantic relationship evaluations (ie, sociosexuality, relationship …

Our intention in writing this chapter is to discuss where psychology is in the study of sexuality
and romantic relationships and to offer our thoughts about where it has yet to go. Because …

Friendships can foster happiness, health, and reproductive fitness. However, friendships
end—even when we might not want them to. A primary reason for this is interference from …

Hormones orchestrate and coordinate human female sexual development, sexuality, and
reproduction in relation to three types of phenotypic changes: life history transitions such as …

Introduction Sexual side effects of combined oral contraceptives (COCs) have not been fully
understood, but increasing evidence prompts broader risk/benefit evaluation and merits …

During the luteal phase of the menstrual cycle, women's bodies prepare themselves for
possible pregnancy and this preparation includes a dramatic increase in progesterone. This …

Millions of women use hormonal contraception and it has been suggested that such use
may alter mate preferences. To examine the impact of oral contraceptive (pill) use on …

Objective This study investigated the relationship between perceived mate value
discrepancy (ie, the difference between an individual's mate value and their partner's mate …