2020 Tokyo Olympics: Simone Biles explains debilitating effects 'twisties' can have on gymnasts | CBS Sports Headlines 2020 Tokyo Olympics: Simone Biles explains debilitating effects 'twisties' can have on gymnasts Biles says she currently cannot tell up from down while in the air ESN FeedsThis post was originally published on … Continue reading 2020 Tokyo Olympics: Simone Biles explains debilitating effects 'twisties' can have on gymnasts