 I think there's a perception that there's a culture change. For this generation that's on the floor competing, I think it's healthier for them. But we don't know what's happening with the younger generations because they still don't have a voice. That's important to note, she says, because female gymnasts are among the youngest of all Olympic athletes. In fact, the youngest person on all of Team USA is the gymnast Hesley Rivera, who just turned 16 last month. Becky Sullivan, NPR News.