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@KirstiMiller30
Mar 24, 2022 • 8 tweets • 4 min read • Read on X
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“IN FACT”

There is no clear biological list of features that allow us to even remotely cleanly separate men from women.

Chromosomes? NOPE

Testosterone? NOPE

Height? NOPE

Vo2 Max? NOPE

Haemoglobin? NOPE

Weight? NOPE

Bone Density? NOPE
FUN FACT: Male and female muscle is the same strength when comparing equivalent cross section/size (Costill et al., 1976; Schantz et al., 1983). Something never considered by Hilton et al.



q
MORE FUN FAQ: Research finds trans women have bone density lower than natal males, natal females, and FtMs, as a group, BEFORE hormone therapy even begins (sample=711, FAR larger than any of the studies Hilton uses)

asbmr.onlinelibrary.wiley.com/doi/full/10.10…
There currently exists NO evidence to suggest that trans women who elect to suppress testosterone (through, for example, gender affirming hormone therapy and/or surgical gonad removal) maintain disproportionate advantages over cis women indefinitely.
Tucker, Hilton etc cite Q angle, lung size, bone density & height in XX women – confer a performance advantage for XY trans women, but there is NO support in the literature that these factors confer any such advantage
Going back to the 1960’s the XY/XX chromosomes classification made no historical, scientific, ethical, legal or social sense.

Recognizing this,the IOC last engaged in chromosomal testing in 1996 Olympics, and formally banned the practice in 1999.

Policies that impact the practice of trans women in competitive sport emanate from the parallel history of efforts to define the female category in ways that excluded those women whose bodies were deemed to not conform to normative standards of femininity.
Many people want a simple biological criterion to indicate an athlete’s sex. But it’s mind-bogglingly more complicated than that. The answer is that there is no simple definition of what a biological male or female is.

medium.com/@kirstiphillip…

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More from @KirstiMiller30

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Aug 3
Does having a Y chromosome make someone a man?

A lot of unintended harm happens when people assume a Y chromosome makes a person a boy or a man and the lack of a Y chromosome makes a person a girl or a woman. Image
It is true that in typical male development, the SRY gene on the tip of the Y chromosome helps to send the embryo down the masculine pathway.
But more than the SRY is needed for sex determination and differentiation; for example, women with CAIS have the SRY gene but lack androgen receptors. In terms of hormone effects on their bodies (including their brains), women with CAIS have had much less “masculinization”
Read 24 tweets
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Apr 7
Broken Hill, where the outback meets the rough & tumble world of mining. Founded on the dreams of striking it rich with silver, lead, & zinc, this city has a gritty history that's as tough as its landscape. From dusty miners to underground tunnels, Broken Hill has seen it all. Image
But, there's more to this dusty outback city than meets the eye! Over the years, Broken Hill has undergone a transformation as sparkly as a freshly polished gem.

Social attitudes have shifted, embracing diversity and inclusivity like never before. Image
From dusty old mines to rainbow flags proudly waving in the outback sun, Broken Hill has become a shining example of acceptance.
Image
Image
Read 16 tweets
.. Profile picture
Aug 5, 2023
The theory of ‘muscle memory’ has been increasingly discussed in relation to TW athletes. Muscle memory theorizes that muscle retains the capacity to perform tasks it has previously undergone, with suggestions that TW therefore, may retain muscle strength advantages over CW
after transition due to cellular or epigenetic marks retained from prior life exposures to testosterone and myonuclei retention. However, it is important to highlight that this area has not been explored in those undergoing GAHT.
Myonuclei retention plays a potential role in muscle memory, with prior research showing myonuclei numbers are associated with training & T use.
Read 9 tweets
.. Profile picture
Jul 10, 2023
No one would need "Help" if their religion didn't teach them they were broken. No one who is same-sex attracted, or gender diverse is broken. The only people who are broken are those who want to torture others for making them think they're broken.
If trans or gay kids were impressionable regarding their own identity then Conversion Therapy would work. And it doesn’t. So they aren’t!!!!!!

nbcnews.com/feature/nbc-ou…
Dr. Swaab a 🌎 renowned neuroscientist (written over 540 papers)makes it clear how sexual orientation & gender identity is already installed in our brains before birth & thus why it is short-sighted to discriminate or judge these aspects of human diversity
https://t.co/KKWO73PXAi
Read 23 tweets
.. Profile picture
Apr 17, 2023
There is no research that shows the effect of T on any individual. XX are generally more sensitive to the effects of T than XY, curvilinear effects as well as great interindividual differences make extrapolation of the effects of specific amounts in any individual impossible.
Many aspects of physique or athletic performance differ between M & F, however, none of these is close to 10-fold, further underscoring the limitations of a straightforward comparison of average M-F differences in athletic performance to average M-F differences in T levels.
Handelsman et al. (2018) note that the lower 95% reference limit for men’s endogenous T is 7.7nmol/L, while the upper 95% reference limit is 29.4nmol/L. But the upper limit men are not any bigger, faster, or stronger than the lower limit men.
Read 11 tweets
.. Profile picture
Apr 17, 2023
Lib & Lab Govt funding priorities across 🇦🇺 have effectively criminalised the consequences of marginalisation & failed to address the causes of offending.

This is why our prisons presently warehouse at record rates Aboriginal men, women & children & the mentally ill.
The 1987–91 Royal Commission into Aboriginal Deaths in Custody reported that:

“The single significant contributing factor to incarceration is the disadvantaged and unequal position of Aboriginal people in Australian society in every way”. Image
Govt's continue to lavish resources on incarceration and private incarceration operated by foreign owned private companies despite empirical research that re-offending is better addressed by rehabilitation programs, education & vocational training, stable housing & employment.
Read 21 tweets

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