Raws li kev lees paub ntawm "innateness" ntawm homosexual attraction, LGBT activists feem ntau hais txog kawm Neuroscientist Simon LeVay los ntawm 1991, nyob rau hauv uas nws liam tias nrhiav tau hais tias lub hypothalamus ntawm "homosexual" txiv neej yog tib yam li cov poj niam, uas supposedly ua rau lawv homosexuals. LeVay nrhiav tau dab tsi tiag? Qhov nws tsis pom qhov tseeb yog kev sib txuas ntawm lub hlwb qauv thiab kev sib deev proclivities. 

Feem ntau ntawm cov ntaub ntawv hauv qab no yog luam tawm hauv qhov kev tshuaj ntsuam ntsuas. "Lub rhetoric ntawm homosexual txav nyob rau hauv lub teeb ntawm scientific tseeb". doi:10.12731/978-5-907208-04-9, ISBN 978-5-907208-04-9

Ib qho ntawm cov lus qhuab qhia ntawm "LGBT" lub zog yog nqe lus hais tias kev sib koom ntawm cov neeg nrog kev nyiam sib nyiam yog 10% - uas yog, txhua thib kaum. Nyob rau hauv kev muaj tiag, raws li kev tshawb nrhiav niaj hnub loj hauv Tebchaws Meskas thiab cov tebchaws ntawm European Union (uas yog, hauv cov tebchaws uas muaj kev sib daj sib deev muaj kev txhawb nqa thiab tiv thaiv los ntawm lub xeev apparatus), qhov feem ntawm cov neeg uas txheeb xyuas lawv tus kheej yog homosexual txawv ntawm <1% mus rau qhov ntau ntawm 3 %.