Homosexual brain anotomy differences

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Recent brain research has revealed structural differences in the hypothalamus in relation to biological sex and sexual orientation. Differences in size and cell number of various nuclei in the hypothalamus for homosexual versus heterosexual men have recently been reported in two studies. We have found that a cluster of cells in the preoptic area of the human hypothalamus contains about twice as many cells in young adult men as in women.

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British Broadcasting Corporation Home. The brains of gay men and women look like those found in heterosexual people of the opposite sex, research suggests. The Swedish study, published in the Proceedings of the National Academy of Sciences journal, compared the size of the brain's halves in 90 adults.

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The brains of homosexual men are structurally different from those of heterosexual men in a region thought to influence male sexual behavior, a scientist says he has found. The discovery, if confirmed, would be the first detection of a distinct pattern in the brain that could help explain sexual preference among men. In the new work, Dr.

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Striking similarities between the brains of gay men and straight women have been discovered by neuroscientists, offering fresh evidence that sexual orientation is hardwired into our neural circuitry. Scans reveal homosexual men and heterosexual women have symmetrical brains, with the right and left hemispheres almost exactly the same size. Conversely, lesbians and straight men have asymmetrical brains, with the right hemisphere significantly larger than the left.

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Scientists Monday reported the first strong physiological evidence that lesbian and bisexual women may be biologically different from heterosexual women. The researchers at the University of Texas in Austin found that, compared with heterosexual women, the hearing of homosexual and bisexual women tends to be a bit more like that of men. The findings suggest that homosexual and bisexual women develop in subtly different ways than heterosexual women.

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From an evolutionary point of view, homosexuality is rather difficult to explain. Any genetic trait that reduces the chances of producing the offspring usually gets eliminated very quickly in populations. Nonetheless, homosexuality appears to persist in humans throughout the history of our species.

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Born this way? Chose this way? Activity, connectivity and structure of certain regions have been repeatedly shown to considerably differ between gay and straight people insert a snarky joke about bisexual erasure as well as cis- and transgenders.

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What makes people gay? Biologists may never get a complete answer to that question, but researchers in Sweden have found one more sign that the answer lies in the structure of the brain. Scientists at the Karolinska Institute studied brain scans of 90 gay and straight men and women, and found that the size of the two symmetrical halves of the brains of gay men more closely resembled those of straight women than they did straight men.

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