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Neurosteroids View all 38 Articles. The preference to seek out a sexual partner of the opposite sex is robust and ensures reproduction and survival of the species. Development of female-directed partner preference in the male is dependent on exposure of the developing brain to gonadal steroids synthesized during critical periods of sexual differentiation of the central nervous system.

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A female gym junkie has revealed how she now looks like a man after developing a steroid addiction which mutated her body. Candice Armstrong, who used to be a pretty blonde, has been left with stubble, broad shoulders and a one-inch penis, after using the drug in a desperate attempt to improve her shape. The former London barmaid said her nightmare began two years ago when she joined a gym to improve her physique.

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A New York doctor named Maria New has been advising pregnant women to take a steroid called dexamethasone to prevent homosexuality and "masculine behavior" in their daughters. How did she get away with this form of anti-gay genetic engineering? New is an endocrinologist who studies, among other things, a condition called congenital adrenal hyperplasia CAH.

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Researchers analyzed questionnaires from 17, adolescents, of whom were classified as sexual minorities. They found that 21 percent of gay and bisexual boys had used steroids at least once in their lives, compared to 4 percent of heterosexual boys. Gay and bisexual boys were also more likely to be heavy users 4 percent versus 0.

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Genetic engineers, move over: the latest scheme for creating children to a parent's specifications requires no DNA tinkering, but merely giving mom a steroid while she's pregnant, and presto—no chance that her daughters will be lesbians or worse? Or so one might guess from the storm brewing over the prenatal use of that steroid, called dexamethasone. In February, bioethicist Alice Dreger of Northwestern University and two colleagues blew the whistle on the controversial practice of giving pregnant women dexamethasone to keep the female fetuses they are carrying from developing ambiguous genitalia.

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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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By Patrick Barry. Lesbian and heterosexual women respond differently to specific human odours, a brain-scanning study has found. The homosexual women showed similar brain activity to heterosexual men when they inhaled certain chemicals, which may be pheromones, the researchers say. When the heterosexual women smelled AND their brains showed activity in the anterior hypothalamus, a region of the brain thought to process sexual cues.

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All A-Z health topics. View all pages in this section. See more ways that NIH research has advanced women's health.

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