As I explained last night, Simone Biles had an entirely defensible reason to pull out of the gymnastics competition, a withdrawal that has now extended to the individual all-around competition. CNN’s Elle Reeve adds to the picture of why her problem is such a big one for a gymnast:
[Biles] said in morning practice that she had a little bit of the twisties. The twisties are a mysterious phenomenon . . . Your body just won’t cooperate, your brain loses track of where you are in the air. You find out where the ground is when you slam into it .
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