Why Are There Gay Women? | Live Science

Contents:

• WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?
• WHY WOULD PEOPLE 'CHOOSE' TO BE GAY?
• WHY ARE THERE GAY MEN?
• HOW TO TELL IF YOUR GUY FRIEND IS GAY
• WHY ARE THERE GAY WOMEN?
• ‘I AM GAY – BUT I WASN’T BORN THIS WAY’
• WHAT SCIENCE KNOWS ABOUT WHY PEOPLE ARE GAY

WHY ARE PEOPLE GAY? GAY BY CHOICE OR IS BEG GAY GEIC?

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. 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. (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.

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. “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.

Scientists may have fally solved the puzzle of what mak a person gay, and how is passed om parents to their children.A group of scientists suggted Tuday that homosexuals get that tra om their oppose-sex parents: A lbian will almost always get the tra om her father, while a gay man will get the tra om his mother.The heredary lk of homosexualy has long been tablished, but scientists knew was not a strictly geic lk, bee there are many pairs of intil tws who have differg sexuali. Scientists om the Natnal Instute for Mathematil and Blogil Synthis say homosexualy seems to have an epigeic, not a geic lk.Long thought to have some sort of heredary lk, a group of scientists suggted Tuday that homosexualy is lked to epi-marks — extra layers of rmatn that ntrol how certa gen are exprsed.

WHY WOULD PEOPLE 'CHOOSE' TO BE GAY?

In homosexuals, the epi-marks aren't erased — they're passed om father-to-dghter or mother-to-son, explas William Rice, an evolutnary blogist at the Universy of California Santa Barbara and lead thor of the study."There is pellg evince that epi-marks ntribute to both the siary and dissiary of fay members, and n therefore feasibly ntribute to the observed faial herance of homosexualy and s low nrdance between [intil] tws," Rice not.Rice and his team created a mathematil mol that explas why homosexualy is passed through epi-marks, not geics. But bee the epi-marks provi an evolutnary advantage for the parents of homosexuals: They protect fathers of homosexuals om unrexposure to ttosterone and mothers of homosexuals om overexposure to ttosterone while they are gtatn."The epi-marks protect fathers and mothers om excs or unrexposure to ttosterone — when they rry over to oppose-sex offsprg, n e the masculizatn of femal or the femizatn of mal," Rice says, which n lead to a child beg gay. Rice not that the markers are "highly variable" and that only strong epi-marks will rult a homosexual offsprg.Though scientists have long spected some sort of geic lk, Rice says studi attemptg to expla why people are gay have been few and far between."Most mastream blogists have shied away om studyg bee of the social stigma," he says.

Well there are many exampl of homosexualy nature, 's very mon." Homosexual behavr has been observed black swans, pengus, sheep, and other animals, he says.Rice's mol still needs to be tted on real-life parent-offsprg pairs, but he says this epigeic lk mak more sense than any other explanatn, and that his team has mapped out a way for other scientists to tt their work."We've found a story that looks really good," he says.

WHY ARE THERE GAY MEN?

It very much appears that same-sex sexual attractn is not a choice but actg on is; so if you fe gay as the mere prence of same-sex attractn, then om everythg we unrstand, beg gay is not a choice.

HOW TO TELL IF YOUR GUY FRIEND IS GAY

Homosexual members of society n unfortunately expect to regularly be challenged, sctised and nmned by belligerent type who are seemgly nvced that homosexualy is a “liftyle choice” issue has e up aga (for what is possibly the 12, 456, 987, 332nd time) for several reasons. A high-profile homosexual person dog this (or pretty much anythg) is certa to get objectns om those who “don’t approve” around the thgs is evable, and so is the whole “beg gay is a choice” accatn. The mastream media has always been somewhat blunt or ham-fisted s portrayal of even heterosexual relatnships (for evince of this, see pretty much any married uple an advert), so was a long shot that they’d show homosexuals accurately.

Normally heterosexual characters sudnly displayg homosexual leangs when a boost viewg figur are need is a mon trope the days, so you n sort of see how this might make some people thk ’s a “choice”, if they lack more realistic sayg that sexualy is set stone om birth is also not que right, the ma emphasis of those g the choice argument is that homosexuals have weighed up their optns and nscly cid “I am gog to be gay om now on”. Comedian Todd Glass mak a brilliant pot his book (which is great, I got for Christmas), which is that if you genuely believe sexualy is a choice, then you’re not actually straight, you jt haven’t met anyone persuasive enough those who argue that homosexualy is a choice variably assert that is a wrong choice. But nsirg that the tra disurag the type of sex that leads to procreatn — that is, sex wh women — and would therefore seem to thwart s own chanc of beg geilly passed on to the next generatn, why are there gay men at all?

For several years, studi led by Andrea Camper Ciani at the Universy of Padova Italy and others have found that mothers and maternal nts of gay men tend to have signifintly more offsprg than the maternal relativ of straight men. The rults show strong support for the "balancg selectn hypothis, " which is fast beg the accepted theory of the geic basis of male theory holds that the same geic factors that duce gayns mal also promote fecundy (high reproductive succs) those mal' female maternal relativ. Through this tra-off, the maternal relativ' "gay man gen, " though they aren't exprsed as such, tend to get passed to future generatns spe of their tenncy to make their male herors no one knows which gen, exactly, the might be, at least one of them appears to be loted on the X chromosome, acrdg to geic molg by Camper Ciani and his lleagu.

WHY ARE THERE GAY WOMEN?

Mal her only one X chromosome — the one om their mother — and if clus the gene that promot gayns mal and fecundy femal, he is likely to be gay while his mom and her female relativ are likely to have lots of kids.

Prevly, the Italian rearchers suggted that the "gay man gene" might simply crease androphilia, or attractn to men, thereby makg the mal who posss the gene homosexual and the femal who posss more promiscuo.

The androphilic pattern that we found is about femal who crease their reproductive value to attract the bt mal, " Camper Ciani told Life's Ltle out, the moms and nts of gay men have an advantage over the moms and nts of straight men for several reasons: They are more fertile, displayg fewer gynelogil disorrs or plitns durg pregnancy; they are more extroverted, as well as funnier, happier and more relaxed; and they have fewer fay problems and social anxieti.

‘I AM GAY – BUT I WASN’T BORN THIS WAY’

So, terms of evolutn, they would seem to have a better chance of passg on their gen, while at the same time would seem that the gen that make women gay would quickly vanish om the gene pool. While scientists have a theory for how male homosexualy propagat om one generatn to the next, no one has yet produced a viable explanatn for how the gen that promote lbianism might do the same. A study by Dutch psychologists published the March issue of the Journal of Sexual Medice reported that 10 to 12 percent of male and female children who feel disfort wh their genr go on to intify as gay or lbian as adults.

You so obvly nnot be gay, was her implitn, bee this is good was 2006, a full five years before Lady Gaga would set the Born This Way argument atop s unassailable cultural perch, but even then the popular unrstandg of orientatn was that was somethg you were born wh, somethg you uldn’t change.

But what feels most accurate to say is that I’m gay – but I wasn’t born this people may fd their sir changg directn - and n't jt be explaed as experimentatn (Cred: Ignac Lehmann)In 1977, jt over 10% of Amerins thought gayns was somethg you were born wh, acrdg to Gallup.

WHAT SCIENCE KNOWS ABOUT WHY PEOPLE ARE GAY

Throughout the same perd, the number of Amerins who believe homosexualy is “due to someone’s upbrgg/environment” fell om jt unr 60% to ias reached cril mass pop culture, first wh Lady Gaga’s 2011 Born This Way and one year later wh Macklemore’s Same Love, the chos of which has a gay person sgg “I n’t change even if I tried, even if I wanted to. ” Around the same time, the Human Rights Campaign clared unequivolly that “Beg gay is not a choice, ” and to claim that is “giv unwarranted crence to roundly disproven practic such as nversn or reparative therapy.

”People who challenge the Born This Way narrative are often st as homophobic, and their thkg is nsired backwardAs Jane Ward not Not Gay: Sex Between Straight Whe Men, what’s tertg about many of the claims is how transparent their speakers are wh their polil motivatns. “Such statements, ” she wr, “fe blogil acunts wh an obligatory and nearly ercive force, suggtg that anyone who scrib homosexual sire as a choice or social nstctn is playg to the hands of the enemy. ” People who challenge the Born This Way narrative are often st as homophobic, and their thkg is nsired backward – even if they are themselv, for example, Cynthia Nixon of Sex and The Cy fame.

”Gay rights do not have to hge on a geic explanatn for sexualy (Cred: Ignac Lehmann)For Aravosis, and many gay activists like him, the public will only accept and affirm gay people if they thk they were born gay. In fact, the homophobic and non-homophobic rponnts he studied shared siar levels of belief a Born This Way Samantha Allen not at The Daily Beast, the growg public support for gays and lbians has grown out of proportn wh the rise the number of people who believe homosexualy is fixed at birth; would be unlikely that this small change opn uld expla the spike support for gay marriage, for stance. “It don’t seem to matter as much whether or not people believe that gay people are born that way as do that they simply know someone who is currently gay, ” Allen spe of the studi, those who ph agast Born This Way narrativ have been heavily cricised by gay activists.