Njengobufakazi "bokuzalwa" kokukhangwa kwabantu abathandana nabobulili obufanayo, izishoshovu ze-LGBT* zivame ukucaphuna ucwaningo lwango-1991 olwenziwe yisazi sezinzwa uSimon LeVay, lapho kuthiwa wathola khona ukuthi i-hypothalamus yamadoda "athandana nabobulili obufanayo" ilingana neyabesifazane, okusolwa ukuthi ibenza babe ngabantu abathandana nabobulili obufanayo. Yini uLeVay ayitholile ngempela? Lokho angazange akuthole ngokuqinisekile kwakuwukuxhumana phakathi kwesakhiwo sobuchopho nokuthambekela kocansi.

Iningi lokuqukethwe ngezansi lishicilelwa embikweni wokuhlaziya. "I-rhetoric of theungqedi lobungqingili ngenxa yamaqiniso esayensi". doi:10.12731/978-5-907208-04-9, ISBN 978-5-907208-04-9

Esinye seziqubulo zenhlangano ye-“LGBT*” ukugomela kokuthi ingxenye yabantu abakhangwa ubungqingili kuthiwa i-10% - okungukuthi, njalo kweshumi. Eqinisweni, ngokocwaningo olukhulu lwesimanje olwenziwa e-United States nase-European Union (okungukuthi, emazweni lapho ubungqingili busekelwa ngokugcwele futhi buvikelwa yimishini yombuso), inani labantu abazichaza njengabangqingili liyahluka ukusuka ku-<1% kuze kufike ku-3%.