An immune rponse some pregnant women’s bodi may expla the “aternal birth orr effect” – that men are more likely to be gay the more olr brothers they have
Contents:
- MEN WH OLR BROTHERS ARE MORE LIKELY TO BE GAY, STUDY SUGGTS
- WE MAY KNOW WHY YOUNGER BROTHERS ARE MORE LIKELY TO BE GAY
- WHAT PERCENTAGE OF THE POPULATN IS GAY?
- WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
- ARE YOUNGER BROTHERS MORE LIKELY TO BE GAY?
MEN WH OLR BROTHERS ARE MORE LIKELY TO BE GAY, STUDY SUGGTS
Men wh olr brothers are more likely to be gay, acrdg to a study om Universy of Toronto rearchers. The reason may be the maternal immune hypothis. * one more chance is gay *
How Olr Brothers Influence HomosexualyHomosexualy might be partly driven by a mother’s immune rponse to her male fet—which creas wh each son she MacGregor / RtersHere’s what we know: Homosexualy is normal. Between 2 and 11 percent of human adults report experiencg some homosexual feelgs, though the figure vari wily pendg on the survey.
Homosexualy exists across cultur and even throughout the animal kgdom, as the thors of a mammoth new review paper on homosexualy wre. Female Japane maqu will even pete tersexually wh mal for exclive accs to female sexual ’s what we don’t know: What, specifilly, someone to bee gay, straight, or somethg between.
WE MAY KNOW WHY YOUNGER BROTHERS ARE MORE LIKELY TO BE GAY
* one more chance is gay *
Part of the explanatn is geic, but bee most intil tws of gay people are straight, heredy don’t expla “why” qutn is important bee “there is a strong rrelatn between beliefs about the origs of sexual orientatn and tolerance of non-heterosexualy, ” acrdg to the report thors, who are om seven universi spanng the globe.
WHAT PERCENTAGE OF THE POPULATN IS GAY?
In his 1948 book, Sexual Behavr the Human Male, Aled Ksey shocked the world by announcg that 10% of the male populatn is gay. A 1993 Jan Report timated that ne percent of men and five percent of women had more than "ocsnal" homosexual relatnships. To some people, homosexualy is a matter of perceptn and fn. Furthermore, many people have trouble admtg their homosexualy to themselv, much ls to a rearcher. But when Gallup asked Amerins for their bt timate of the Amerin gay and lbian populatn, the rults ma all the figur mentned look nservative. * one more chance is gay *
(When Atlantic ntributor Chandler Burr proposed his 1996 book, A Separate Creatn, that people are born gay, Southern Baptists lled to boytt Disney films and parks prott agast the publisher, Disney subsidiary Hypern. ) It shouldn’t matter whether people “choose” to be gay, but polilly, do—at least for of the most nsistent environmental explanatns for homosexualy is lled the “aternal birth orr effect.
Studi have found that a man whout olr brothers has about a 2 percent chance of beg gay, but one wh four olr brothers has a 6 percent chance. Average prevalence 2013 (Sav-Williams and Vrangalova)Acrdg to the report, Blanchard now plans to tt mothers of gay and straight men for the prence of the antibodi.
But gaps will rema, such as why some firstborn sons are gay, why some intil tws of gay sons are straight, and why women are gay, to name jt a review-paper thors do le out one explanatn for homosexualy, however: That tolerance for gay people enurag more people to bee gay.
WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
Why are people gay? Are they gay by choice or is beg gay geic? Are they born gay? Learn about the and reasons for beg gay. * one more chance is gay *
“Homosexual orientatn do not crease equency wh social tolerance, although s exprsn ( behavr and open intifitn) may do so, ” they reasong—that a tolerant society somehow enurag homosexualy to flourish—has been ed to support anti-gay legislatn Uganda, Rsia, and elsewhere. Specifilly, many aspects of the velopment of homosexualy (both the male and female varieti) are not as well unrstood as they should be to make some of the claims that many people felt nfint exprsg.
There's a lot to discs regardg the rults of the paper (Skorska et al, 2016): The rearchers were examg the possibily that a maternal immune rponse might play a key role the velopment of a homosexual orientatn mal. Effectively, then, the mother's immune system would (sometim) treat certa male protes produced by the fet as a foreign pathogen and attempt to attack , rultg out that uld clu a homosexual orientatn, but also fetal loss if the reactn was strong enough (i. Already there is a lot to like about this hypothis on a theoretil level, as don't pos any hidn adaptive benefs for a homosexual orientatn (as such proposed benefs have not received sound empiril support historilly).
The rearchers reced approximately 130 mothers and classified them on the basis of what kd of children they had: those who had at least 1 gay son (n = 54), and those who only had heterosexual sons (n = 72). The mothers were then classified further to one of five groups: those wh gay male only-children (n = 8), those wh gay male offsprg that had no olr brothers (n = 23), those wh gay male offsprg wh olr brothers (n = 23), those wh heterosexual male only-children (n = 11), and those wh heterosexual male offsprg wh siblgs (n = 61). As predicted, the average number of fetal loss were higher the first group (mothers of gay male only-children; M = 1.
ARE YOUNGER BROTHERS MORE LIKELY TO BE GAY?
The crease the number of visible gay and trans people is sometim treated as a cursy or a e for ncern by crics, but ’s not a surprise. It’s normal. * one more chance is gay *
When nsired terms of the rat of misrriag to live to births, a siar picture emerged: mothers of gay male only-children reported more misrriag to live births (M = 1.
As birth weight tends to crease over succsive pregnanci, the parisons were limed to first live-born sons only (n = 63); this left 4 gay male only-children, 7 gay mal wh no olr brothers, 14 heterosexual mal wh gay younger brothers, 10 heterosexual male only-children, and 28 heterosexual mal wh siblgs. The rults mirrored those of the fetal-loss data: mothers of gay male only-children tend to give birth to fants that weighed signifintly ls (M = 2970 grams), than all other groups (d = 1. In sum, then, mothers of gay male only-children tend to have a greater number of misrriag and give birth to signifintly lighter offsprg than mothers of other kds.
While 's important to not get rried away wh this fdg given the relatively small sample size (I wouldn't put too much stock an N of 8), there is some suggtive evince here worth pursug further that somethg is atypil fetal velopment the se of gay male offsprg.