Hormones make pretty women serial monogamists
The next big thing in cancer treatment may be hotter, covered in more gold, and even be a better swimmer than recent Olympic champion Michael Phelps. Scientists at the University of Idaho are engineering multifunctional and dynamic nanowires coated in gold that swim through the bloodstream and attach to specific cancerous cells. Once there, an
Full Post: Gold nanowires zap cancer
American researchers say women with high levels of estrogen feel more attractive and are far more likely to indulge in affairs.
The researchers from the University of Texas say the female hormone estrogen which affects fertility is known to make women feel more attractive and flirtatious and they may act on those feelings by having affairs with different men.
According to Dr. Kristina Durante young women feel more attractive when they have high levels of estradiol, and they acted on those feelings by flirting, kissing and having a serious affair with someone other than their primary partner.
Dr Durante’s team say the results of their study provide support for the relationship between physical beauty and fertility and suggests that women high in reproductive health engage in opportunistic serial monogamy - they have affairs and move on to a new relationship if a higher-quality mate becomes available.
For the study the researchers tested 52 female undergraduates aged 17 to 30 who were not taking hormone contraceptives and took two estradiol samples at two stages of their menstrual cycle to measure their hormone levels.
The women were questioned about their sexual histories and asked to rate their own looks before two male and seven female undergraduates blind to the research who were invited to score their attractiveness from full-body photos - women with high-estradiol levels were considered significantly more physically attractive by themselves and others.
The high-estrogen women also reported more sexual behaviour - especially outside of a relationship, which was not linked to one-night stands.
The researchers say their results are consistent with the possibility that highly fertile women are not easily satisfied by their long-term partners and are especially motivated to become acquainted with other, presumably more desirable, men and adopt a strategy of serial monogamy.
Dr Durante says physically attractive women receive more male attention and when in relationships, are more likely to be the targets of mate poaching - they also have especially high mating standards and also more alternatives, which gives them fewer reasons to be committed to any particular partner.
Research has established that estradiol, which is similar to testosterone in men, fuels a lust for power with single women and those who are not on the Pill are particularly vulnerable to the effects of the sex hormone.
The study is published in the Royal Society’s journal Biology Letters.
Scientists have long known that women’s preferences for masculine men change throughout their menstrual cycles. A new study from Indiana University’s Kinsey Institute is the first to demonstrate differences in brain activity as women considered masculinized and feminized male faces and whether the person was a potential sexual partner. The researchers identified regions of the
Full Post: Researchers identify regions of female brain that respond more strongly to masculine faces
Having an imperfect body may come with some substantial benefits for some women, according to a new article in the December issue of Current Anthropology. The hormones that make women physically stronger, more competitive and better able to deal with stress also tend to redistribute fat from the hips to the waist, according to Elizabeth
Full Post: Stereotypical imperfections offer health benefits when it comes to bodies
Men with facial scars are more attractive to women seeking short-term relationships, scientists at the University of Liverpool have found. It was previously assumed that in Western cultures scarring was an unattractive facial feature and in non-Western cultures they were perceived as a sign of maturity and strength. Scientists at Liverpool and Stirling University, however,
Full Post: Men with facial scars more attractive to women
The results of a recent survey in Britain have led to announcements that Brits, in particular young female ones, are amongst the most promiscuous in the world. The survey of 2,000 young people by the magazine More has apparently found that young British women have more one-night stands than their peers in Australia, France, the
Full Post: Women have more sexual partners than men in Britian
New data from The Kinsey Institute at Indiana University demonstrate that many women think condoms undermine sexual pleasure, but those who use both hormonal contraception and condoms report higher overall sexual satisfaction. The study authors suggest that this inconsistency reflects how women think about their contraceptive method when asked questions about two different aspects of
Full Post: Contraceptive methods and women’s sexuality