A look under the Big Top: Decade-long study sheds light on head injuries in Cirque du Soleil performers

When most people think of Cirque du Soleil, they envision bodies flying through the air, performers bending in ways that defy anatomy and acts so daring they sit on the edge of danger. With such breathtaking risk involved, it's easy to assume the injury rate, especially concussions, must be high. But thanks to a new study led by Ohio University's Dr. Jeff Russell, we now know just how often head injuries actually happen under the big top.