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What Makes a Brain Gay?

Time magazine has a new article about "the gay brain," illustrated by this sculpture of this gay head fragment. Here's an excerpt:

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. In heterosexual women, the two halves of the brain are more or less the same size. In heterosexual men, the right hemisphere is slightly larger. Scans of the brains of gay men in the study, however, showed that their hemispheres were relatively symmetrical, like those of straight women, while the brains of homosexual women were asymmetrical like those of straight men.


There are more observations in the piece about how the brains of gay and straight men and women compare to each other, and all of it seems to confirm that there is, in fact, an inborn, biological component to our sexuality.

We would hope this would put to rest the debate over whether or not homosexuality is innate, but as long as Focus on the Family and other such groups are around vehemently insisting that all such scientific evidence is bunk, we wouldn't bet on anything being settled just yet.

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Mo's Bio

Mo Rocca appears on a bunch of shows, including CBS News Sunday Morning (with the indescribably wonderful Charles Osgood), The Tonight Show on NBC, and NPR's Wait Wait... Don't Tell Me! He's a sometime judge on Iron Chef and was featured on Telemundo's Amore Descarado. Last year he starred on Broadway in the 25th Annual Putnam County Spelling Bee. His expose "All the President's Pets" was published by Crown in 2004.



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News Bloggers

Mo Rocca appears on a bunch of shows, including CBS News Sunday Morning (with the indescribably wonderful Charles Osgood), The Tonight Show on NBC, and NPR's Wait Wait... Don't Tell Me! He's a sometime judge on Iron Chef and was featured on Telemundo's Amore Descarado. Last year he starred on Broadway in the 25th Annual Putnam County Spelling Bee. His expose "All the President's Pets" was published by Crown in 2004.

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