“Your brain isn’t different because you’re trans”
Doc Impossible does her best to debunk the idea that there are female and male brains, and that this can explain the gender identity of trans people.
She writes:
One of the most persistent myths in our entire community is that a person is trans because our brain structures are more like our real gender than our gender assigned at birth.
In many ways, this hypothesis has been the transgender version of the old 00’s hunt for the gay gene (spoiler, there isn’t one; it’s complex genetic and epigenetic influence, just like being trans is)—it’s given us a biological explanation for why we’re trans, and why gender transition is an absolute necessity for so many of us….
That hypothesis was dealt an absolute death-blow a few years back, though, and it wasn’t even the direct target of the death-blow. Eliot et al, in 2020, published the largest meta-study ever even attempted on the structure of human brains and how they were related (or not) to sex, including all research done in the last thirty years on brain structure.
They weren’t even looking at trans brains here, not directly—though they included all of the research on trans brains too, since it met their inclusion criteria—they were looking at how gender and sex interacted for brain structure for all people, trans and cis.
After all this work, they found that there was no significant difference between male and female brains so decisively that they titled the damn paper “Dump the ‘dimorphism.’”
Their research said, in short, that only about 1% of the brain had any difference at all between male and female people, structurally, and the only real difference was sheer size, because males are, on average, bigger than females.
No, this does not mean that there are no biological components to the gender identities of trans people. There probably is. But there is no definite proof of trans men having a blue chip in their brain or trans women having a pink one.
Instead the more likely explanation is that transgender identities, like non-heterosexual sexual orientations, grow out of complex genetic and epigenetic processes, shaped by culture and lived lives.
What We Know About Trans Brains
Illustration: akinbostanci









