> In conclusion, FtMs (female to males) showed evidence of subcortical gray matter masculinization, while MtFs (male to femlaes) showed evidence of CTh feminization. https://www.ncbi.nlm.nih.gov/pubmed/22941717>Our study is the first to show a female brain structure in genetically male transsexuals and supports the hypothesis that gender identity develops as a result of an interaction between the developing brain and sex hormoneshttps://www.nature.com/articles/378068a0It's time to move on from that simplisitic high school teaching that chromosomes dictate if you're a man or a woman. Gender is in the brain, not your genitals or chromosomes. Transwomen are real women and transmen are real men.