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There's a lot of misinformation out there about what it means to be transgender.
But recently...
Scientists have begun to look more closely...
Into the neurology, physiology, and psychology...
Behind it.
So today, we're gonna break down what science does know.
In a respectful and educational way.
Hey guys! I'm Gigi Gorgeous.
And today, I'm here with ASAPScience.
To break down 'The Science of Being Transgender'.
Before we get too deep into it.
We have to look at your genetic sex.
Or the chromosomes you have.
These were determined right at fertilization.
When the sperm cell from your father⁠.
Which carries an X or a Y chromosome.
Fused with the egg from your mother⁠—which carries an X chromosome.
But until 6 or 7 weeks after fertilization.
Both XY and XX embryos...
Have identical gonads.
Around 7 weeks.
The male sex organs start to develop.
Because of a gene on the Y chromosome.
Called SRY.
It causes cells to become more specialized.
And these cells create testosterone.
Which in turn triggers the development...
Of structures like the...
Penis and scrotum.
While other cells block female development.
By degenerating the female ducts.
However, in female development.
Because there is no Y chromosome with the SRY gene.
These ducts stay intact and become the uterus...
Cervix, upper vagina, and the oviduct.
With the help of estrogen, and chemicals secreted by...
The early kidney.
But it's not always that simple.
There are sometimes even rare combinations
like XXY, XXX, XXYY, etc.
And even people with...
XX chromosomes that develop male genitals and characteristics.
Due to a piece of the Y chromosome breaking off.
And switching places to an X chromosome.
But sexual differentiation in the brain...
Actually happens much later than gonadal differentiation.
And yes, although controversial.
Male and female brains have...
Structural and functional differences...
Between each other.
Studies have found that...
Males generally have a larger cerebrum.
Cerebellum.
And hippo campus.
While females have.
Higher-density left frontal lobes.
And larger volumes in the right frontal lobes.
So what exactly do we see...
When we look at the brain...
Of a transgender person?
Several studies have shown that...
Transgender brains are both...
Structurally and functionally more...
Similar to their experienced gender identity...
Than their biological sex.
One study found that transwomen, who...
despite being assigned male at birth.
Had a smaller female-sized structure in the hypothalamus.
MRI scans also show the...
Brain structures of transpeople...
To be more similar in thickness to their...
Experienced gender and not their sex.
Finally, the pheromone androstadienone causes...
Different hypothalamic responses in male and female brains.
And when individuals with Gender Dysphoria were exposed to it.
The hypothalamic response match their perceived gender rather than their sex.
These studies help to highlight how masculinisation...
Or feminisation of the gonads...
Is not always the same as the brain.
And that there's a difference between...
Your sex, or your anatomy...
And your gender, or how we perceive our own bodies.
There also seems to be...
a genetic component to transgender identity.
Looking at family histories.
Gender identity in congruence seems to run in the family.
Meaning they may be inherited.
The CYP17 gene, which controls...
The body's level of sex hormones...
Has a changed allele that is expressed...
Frequently in transmen.
Although more research could be done.
Scientists are currently looking at over...
3 million DNA markers for transgender identity...
To investigate any genetic link for being trans.
Even though scientific studies...
Validate the experience of transgender people.
They're still suffering from more...
Depression and anxiety than the general public.
The risk of suicide...
is more prominent in transgender people.
Who have been rejected by their family.
Discriminated in the workplace.
Or in health care.
Suicide risks seem to...
Decrease after gender transitioning.
Suggesting that Gender Dysphoria can cause...
An extreme amount of emotional pain.
Even to the point of suicide.
If you, a family member, or a friend is...
Suffering from Gender Dysphoria.
There are few links in the description...
For more information.
Thank you so much Gigi.
For being part of this video.
It means so much and we're happy that you were here to do this with us.
Ah, well thank you guys for using...
Your channel, your platform...
Validating transgender experiences with science.
Which just brings us closer to equality.
Absolutely!
If you guys wanna check out Gigi's channel.
We'll put links in the description.
Or on the screen somewhere.
Otherwise, you can subscribe for more science here...
Every week, and we'll see you next time.
Peace!
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帶你用科學來解釋「誇性別人士」 (The Science of Being Transgender ft. Gigi Gorgeous)

50 分類 收藏
jeremy.wang 發佈於 2020 年 3 月 30 日    susan 翻譯    susan 審核
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