concussion

After suffering a concussion in the massive end-of-race 25-car pileup at Talladega last weekend, Dale Earnhardt Jr. will miss the next two races, and perhaps the rest of the NASCAR season. That crash marked Earnhardt's second concussion of the season; the first happened after a failed tire test ...

Anyone who's managed to catch an NFL game or two this year is surely aware that the league is cracking down (with stiff fines and penalties) on the kinds of violent helmet-to-helmet hits that are likely to ...