Sports Rewind: Usain Bolt Captures Gold

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  • Jackson vs. Ortiz
  • Magic Johnson
  • NFL
  • NFL
  • Geno Smith, Mark Sanchez
  • P.J. Hairston
  • Usain Bolt Does It Again
  • Riley Cooper
  • Phoenix Suns Player was Arrested
  • Alex Rodriguez
  • Terrence Jones
  • LeBron James

The Real Impact of Concussions

New analysis suggests that concussions are increasingly keeping players off the field. Using data from collected by the National Football League, a study from Edgeworth Economics found that players with concussions missed an average of 16 days last season, an increase from only four days in 2005. (Photo: Jonathan Daniel/Getty Images)