On-air challenge: In recognition of the Super Bowl, the key word is "yards." You will be given some categories. For each one, name something in the category beginning with each of the letters Y, A, R, D and S. For example, if the category were "Girls' Names," you might say Yvonne, Alice, Rachel, Donna and Sally.
Americans seeking stem cell replacement therapy hope the process can heal them of myriad diseases, and a 2011 report by the Baker Institute estimated the industry could bring in $16 billion in revenue by 2020.
On the eve of Super Bowl Sunday, host Laura Sullivan speaks with former NFL lineman Tre Johnson and writer Tom Junod, whose piece in this month's Esquire takes readers into the training room, where players recover from their many injuries. And in many ways, those injuries last a lifetime.