Simone Biles is opening up about her «twisties» problem. After exiting both the team and individual all-around competitions at the Tokyo Olympics, the 24-year-old gymnast took to her Instagram Story on Thursday to do a Q&A, revealing when her twisties started, how they feel and if she's still struggling with them.Biles noted that she was not experiencing the twisties, a mental block where gymnasts lose track of their position midair, before she left the U.S.