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  • 07.03.2019
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Men with older brothers tend to be gay

Not more siblings in general, not more older or younger sisters, only more older brothers. There is no equivalent effect among lesbian versus straight women; to the best of our knowledge, this is a strictly cis male thing. This particular effect is also relatively small in size, so there will be many exceptions. Also, these days families are relatively small, so the effect can be even harder to detect.
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Gay Men Tend To Have Older Brothers. Scientists Now Think They Know Why

Men with older brothers tend to be gay
Men with older brothers tend to be gay
Men with older brothers tend to be gay
Men with older brothers tend to be gay
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Gay Men Tend To Have Older Brothers. Scientists Now Think They Know Why - Towleroad Gay News

Scientists believe they may now know why gay men tend to have more older brothers. A new paper in the Proceedings of the National Academy of Sciences by Anthony Bogaert—the culmination of more than 20 years of research—shows that antibodies to one particular protein may be responsible. Bogaert, a human sexuality researcher at Brock University in….
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Bottoms Have More Older Brothers, According to Science

A correlation between fraternal birth order and male sexual orientation has been suggested by research. Ray Blanchard identified the association and referred to it as the fraternal birth order effect. In several studies, the observation is that the more older brothers a man has from the same mother, the greater the probability is that he will have a homosexual orientation. The fraternal birth order effect has been described by one of its proponents as "the most consistent biodemographic correlate of sexual orientation in men".
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CNN If you're a guy with an older brother, there's an increased chance you're gay. Clarification: A previous version of this story referred to higher concentrations of the protein instead of higher concentrations of antibodies to the proteins when describing the findings of the study. Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

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Hsjgyj | 09.03.2019
I can't find him. Can you give a link or something?

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