I hadn't realised it had reached this level!
When the world's fastest women race for gold over 800m in Tokyo, all three medallists from the 2016 Olympics will be absent - barred as intersex athletes who refuse to alter their natural hormones to meet the rules of sport.
Intersex people are born with atypical chromosomes or sex characteristics. Women like double Olympic 800m champion Caster Semenya have some male sex characteristics, including internal testes that produce average male levels of testosterone.
World Athletics, the sport's governing body, says this lends an unfair advantage over middle distance and, in 2019, mandated lower testosterone to "ensure fair competition for all women". But many women such as Semenya and fellow 2016 medallists, Burundi's Francine Niyonsaba and Kenyan Margaret Wambui, refuse to use drugs or surgery to alter the makeup of their bodies.
Again, hard to tell just by looking at them...(!)
