More or Less: Behind the Stats

Testosterone and sport

<p>In early December 2021 a member of Penn University Women’s Swim Team caused a stir. Lia Thomas not only won three events but she had the fastest time in elite college swimming in the country in two out of three races. This achievement reignited a debate as Lia Thomas is a transgender woman; we examine the rules around testosterone and trans women’s participation in elite sport.</p>

<p>Tim Harford and the More or Less team try to make sense of the statistics which surround us. From BBC Radio 4</p>