This is not the case for everyone. There are various DSDs that make testosterone ineffective or only partially effective[1]. It’s how you can end up with XY wom

This is not the case for everyone. There are various DSDs that make testosterone ineffective or only partially effective[1]. It’s how you can end up with XY women. And what the CAS did here was to ignore the facts. The evidence presented by the IAAF did not support its case. [2] 1. https://en.wikipedia.org/wiki/Disorders_of_sex_development https://en.wikipedia.org/wiki/Disorders_of_sex_development 2. https://www.theguardian.com/commentisfree/2019/may/01/losing-caster-semenya-decision-wrong-women-testosterone-iaaf https://www.theguardian.com/commentisfree/2019/may/01/losing...