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[–]MarkTwainiac 4 insightful - 1 fun4 insightful - 0 fun5 insightful - 1 fun -  (0 children)

testosterone could very well allow some to compete against cis men in many sports.

We know this isn't true because of widespread doping that's occurred in sports over many decades. The GDR in particular ran a program in the 1960s, 70s and 80s in which large numbers of female athletes took exogenous testosterone regularly throughout their tween, teen and adult years. The androgenized female athletes won all the top prizes and broke records in many women's events such as Olympic swimming, but they never came close to performing anywhere near the levels of the elite males in their sports.

Florence Griffith Joyner was believed to have been doping on androgens when she set her world records in women's sprints in the 1980s. For 33 years, no female broke her records in the 100m or 200m. But since the year 2000 alone, more than 3,600 males have run faster than her 100m record.

https://twitter.com/fondofbeetles/status/1156542238777851904?lang=en