NPR: How long can you go without checking email, or glancing at your smartphone? Clifford Nass, a psychology professor at Stanford University, says today’s nonstop multitasking actually wastes more time than it saves—and he says there’s evidence it may be killing our concentration and creativity too.

People who multitask all the time can’t filter out irrelevancy. They can’t manage a working memory. They’re chronically distracted. -Dr. Clifford Nass