Should she be allowed to race? A top European court has ruled that star athlete Caster Semenya’s human rights were broken after she was banned from competing in some events in 2018.
Olympic champion wins victory in hormone row
On her toes: Caster Semenya has won Olympic gold in the women’s 800m two times, in 2012 and 2016. Glossary
Testosterone - The hormone that causes people to develop male sexual characteristics. Women also produce some testosterone.
Side effects - An unwanted or unexpected result that comes along with the wanted result of an action.
Government - The group of people who govern - or lead - the country.
Advantage - Something (such as a good position or condition) that helps to make someone or something better or more likely to succeed than others.