Researcher believes games and Facebook can build memory

According to this BBC News report, Sudoku and Facebook may improve your ability to recall and use pertinent information, while texting and Twitter may dull your wits. University of Stirling psychologist Dr. Tracy Alloway has studied "working memory" and advocates mental exercises that form connections between pieces of information. A complex war game, for example, forces the brain to remember and plan ahead. On YouTube or Twitter, however, "your attention span is being reduced," Alloway says.