the trouble too much T
Jared Sperli stashed this in nyt
Many conditions can lead to naturally high testosterone, including polycystic ovarian syndrome or an ovarian tumor during pregnancy, but women with intersex traits tend to have the highest T levels. And it is these intersex traits that sports authorities want “corrected.”
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Sports authorities argue that screening for high T levels is needed to keep women’s athletics fair, reasoning that testosterone improves performance. Elite male athletes generally outperform women, and this difference has been attributed to men’s higher testosterone levels. Ergo, women with naturally high testosterone are thought to have an unfair advantage over other women.
But these assumptions do not match the science. A new study in Clinical Endocrinology fits with other emerging research on the relationship between natural testosterone and performance, especially in elite athletes, which shows that T levels can’t predict who will run faster, lift more weight or fight harder to win. The study, of a sample of 693 elite athletes, revealed a significant overlap in testosterone levels among men and women: 16.5 percent of the elite male athletes had testosterone in the so-called female range; nearly 14 percent of the women were above the “female” range.