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Podcast: All testosterone levels are not equal in deciding male, female athletes

Caster Semenya of South Africa celebrates wins gold in the Women's 800 meters final during athletics on day nine of the Gold Coast 2018 Commonwealth Games at Carrara Stadium on April 13, 2018 on the Gold Coast, Australia. (Photo by Michael Dodge/Getty Images)

In this week's Why Sport Matters produced in conjunction with the Women's Sports Foundation, Kenneth Shropshire is joined by Katrina Karkazis, a medical anthropologist and bioethicist at Stanford University School of Medicine and Sarah Axelson, director of advocacy at the Women's Sports Foundation.

Today, Kenneth and his guests discuss the characteristics that make someone a man and someone else a woman and the implications of gender differences in athletics. This is particularly important when considering a fair and level playing field, what the IAAF says it was trying to do when it issued a regulation on the amount of testosterone in women's bodies that appeared aimed squarely at South African runner Caster Semenya and Indian runner Dutee Chan.

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