Biles wowed the world during the 2016 Summer Olympics in Rio de Janeiro, winning individual gold medals in the all-around competition, vault, and floor, as well as leading the U.S. women to a team gold. However, during the Tokyo Games in 2021, Biles chose to withdraw from the competition after experiencing the "twisties" while practicing. She explained to her Instagram followers at the time that the "twisties" impacted her performance and were a cause for concern as it could result in injury.
"It's the craziest feeling ever. not having an inch of control over your body. what's even scarier is since I have no idea where I am in the air I also have NO idea how I'm going to land. or what I'm going to land on. head/ hands/ feet/ back," she wrote, according to E! Online.