There is always so much debate on whether or not our sexual identity is “nature”  or “nurture.” As in most cases, there’s probably an awful lot of of both but this article certainly suggests that a predilection to  ”transexuality, ” that is, feeling as though your are a certain sex in the wrong body may be hard wired into our system. Thanks to Felix from The Institute for Advanced Study of Human Sexuality for bringing this to my attention!