Lesbian hormone levels

Lesbian and bisexual women may have different levels of sex hormones compared to heterosexual women. We systematically reviewed comparative studies measuring any sex hormones. Any relevant empirical studies published within the last 50 years reporting any circulating sex hormones in sexual minority women compared to heterosexual women were included, with no language or setting restrictions. Inclusions, data extraction, and quality assessment were conducted in duplicate. Random-effects meta-analyses of hormone levels, using standardized-mean-differences SMD were conducted where five or more studies reported results.
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05.09.2020
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Origins of female homosexuality

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Origins of female homosexuality - The University of Auckland

The authors measured plasma testosterone T , androstenedione A , and cortisol C levels in seven lesbian and seven heterosexual women matched for age and socioeconomic status. In addition, psychiatric symptoms, physical activity levels, depression, subjective sense of stress, and sexual behavior variables were assessed. There were no significant differences in sex hormone levels between the two groups of women, who were also comparable in psychiatric symptom levels, depression, and self-perceived stress. Lesbian women reported significantly more current physical activity relative to peers.
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Lesbians are more than twice as likely as heterosexual women to have a hormonal imbalance that causes infertility, a British study has found, linking for the first time lesbian sexual orientation with hormonal makeup. The discovery by researchers from the London Women's Clinic centred on the most common cause of ovarian dysfunction in women, polycystic ovarian syndrome PCOS. Caused by an imbalance of sex hormones, one of the main features of PCOS is hyperandrogenism - an abnormally high concentration of male steroid hormones called androgens.
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Health and medicine , Education and society , Doctoral. Hormonal environments in the womb may help explain the evolutionary origins of female homosexuality and determine the spectrum of sexual orientation in women according to a review article published in the Archives of Sexual Behavior. An international research team that includes Severi Luoto, doctoral candidate in evolutionary psychology from the University of Auckland, propose that the degree to which male-typical and female-typical traits vary between women is based on the degree and type of sex hormone exposure in prenatal development. Rantala from University of Turku in Finland and Professor Indrikis Krams from the University of Tartu in Estonia and University of Latvia, examined scientific studies from neuroscience, biology and psychology. Their review identified clusters of sex-typical traits which vary in degrees of masculinity.
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