[tanysquirrel]

so yes.. its in "our heads".. but physically, not just psychologically.

more on difference in hypothalamus :

http://www.ncbi.nlm.nih.gov/pubmed/18056697

http://press.endocrine.org/doi/full/10.1210/jcem.85.5.6564

http://cercor.oxfordjournals.org/content/18/8/1900.full

http://www.nytimes.com/1995/11/02/us/study-links-brain-to-transsexuality.html

http://openmindedhealth.com/2012/01/transsexual-brain-studies/

so there seems to be countless reports and sites confirming this.. i will not add any more as it can get a bit agitating for other people on this site, and this is not my thread in particular... btw that was all links from page one of search : Transsexual hypothalamus . feel free to check out more ..