...Osman Sabuncuoglu Research into the neurobiological origins of same-sex attraction is inconclusive. A recent theory of homosexuality posited that maternal thyroid dysfunction during pregnancy is associated with an increased rate of homosexual orientation in offspring. Relevant studies from...

...Jeffrey Mullen Jeffrey Mullen, University of California, Irvine, CA 92697, USA. © 2016 J. Mullen 2016 This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). Gender nonconformity homosexuality maternal thyroid sexual...

... test). The association was also significant for each sex (P<0.0001, by Fisher's exact test). There is evidence that thyroid gland plays a crucial and decisive role in determining sexual orientation in people. Maternal thyroid dysfunctions during pregnancy may result in homosexual orientation...