Pretty girls have cheat hormone
WOMEN with high levels of a powerful sex hormone are more likely to have affairs, a study says.
Those with most oestradiol, dubbed the 'Marilyn Monroe hormone', a form of oestrogen, are more physically attractive but less satisfied with their partners — and less committed to them.
The ovarian steroid hormone is also associated with having a symmetrical face, large breasts and a low waist-to-hip ratio.
Australian sexologist Dr Frances Quirk said in response to the research: "Marilyn Monroe is actually a really good example of a woman who was almost certainly high in oestradiol.
"She was a classic hour-glass figure and because of her relationship pattern - she was a serial monogamist.
"Her relationships last three or four years or slightly longer, and if you look at the men she had relationships with, they increased in status."
Dr Kristina Durante, of the University of Texas, said: “Attractive women have high standards that are difficult to satisfy.”
So they “trade up” to a higher-quality mate when the opportunity arises.
The University of Texas study took in 52 young women, aged 17 to 30, and checked their oestradiol levels using a saliva swab.
They were asked to rate themselves on perceived desirability, quizzed on their sexual motivations and also their inclinations relating to their current relationship.
Dr Quirk, Associate Professor at James Cook University, said because of these traits, high-oestradiol women "may also be the sort of women that other women don't like too much".
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