Playing this game won't make you feel older, unless you're already getting up there in age. iStockphoto.com hide caption

toggle caption iStockphoto.com

Strenuous mental exercise like reading difficult books, solving tricky math problems — or, maybe, playing the right video game — can help keep a healthy brain sharp, research suggests. Images.com/Corbis hide caption

toggle caption Images.com/Corbis

NPR thanks our sponsors

Become an NPR sponsor