Of course women produce testosterone. Here is something that discusses the limits, but the research from David Handelsman and other research as well, have been very clear about the levels in female and male people. There is no over for healthy athletes between male and female ranges of testosterone. Female people who have a natural reading above the range mentioned have health issues that would exclude them competing as it is likely to be a tumour producing that level.
Yes. It is a swerve and a common one, to move from supporting Khelif competing in female boxing because he doesn’t win every time, which is a fallacious argument because it is irrelevant to the issue of why we have female sports in the first place to then declare it should be banned anyway.
These are two very different issues
here is the testosterone ranges. Many of us on this thread know this information because we have discussed in depth and have read the academic papers and studies about this issue.
RE: PCOS & FEMALE PEOPLE WITH HIGHER TESTOSTERONE
This is from a PCOS advocate on twitter.
PCOS raises female testosterone to up to 5.5 nmol/L (and above 4 can cause serious issues).
5-ARD raised Caster's testosterone to 21 nmol/L.
twitter.com/NathanielHart72/status/1550916276490477568?s=20&t=E8muLvV5kUEpbPeemz8zwQ
Plus there is this:
twitter.com/seaningle/status/1537480540068225031?s=20&t=E8muLvV5kUEpbPeemz8zwQ
Sean Ingle (Guardian sports journalist) mentioned this
The latest scientific publications clearly demonstrate that the return of markers of endurance capacity to "female level" occurs within six to eight months under low blood testosterone, while the awaited adaptations in muscle mass and muscle strength/power take much longer (two years minimum according to a recent study). Given the important role played by muscle strength and power in cycling performance, the UCI has decided to increase the transition period on low testosterone from 12 to 24 months. In addition, the UCI has decided to lower the maximum permitted plasma testosterone level (currently 5 mol/L) to 2.5 mol/L. This value corresponds to the maximum testosterone level found in 99.99% of the female population.
Plus this discusses the ranges
^https://onlinelibrary.wiley.com/doi/epdf/10.1111/sms.14581^
The International Olympic Committee framework on fairness, inclusion and nondiscrimination on the basis of gender identity and sex variations does not protect fairness for female athletes
“In adulthood, circulating testosterone concentrations do not come close to overlapping between females (0.1–1.7 nmol/L) and males (7.7–29.4 nmol/L).”
plus this Hoovlet post with handy charts in the tweet
https://x.com/hoovlet/status/1819017510005407984
“Confirmed. No overlap in T levels between healthy men and women, and rarely in people with atypical levels”.
“Below I'll include some info from my book on T and sex diffs. First is an illustration of the combined data from a meta-analysis of studies on a healthy population (by David Handelsman), and another on T levels in ppl with medical conditions/DSDs (by Richard Clark). I've also included my text description of the data. The original illustration is from Doriane Coleman's excellent Sex in Sport article (link is in the graphic). She let me adapt it for my book but hers is clearer!”