Gymnasts explain what's going on with Biles
https://www.boredpanda.com/former-gymnasts-explain-simone-biles-withdraw-olympic-games/?cexp_id=41767&cexp_var=47&_f=featured&utm_source=google&utm_medium=organic&utm_campaign=organic
People forget that women's gymnastics is insanely dangerous. A person who loses their equilibrium while doing these exercises can suffer horrible injuries, like the commentator who broke her neck during a gymnastics fall and was paralyzed.