These days, most of us live our lives tethered to our computers and smartphones, which are unending sources of distraction. Research has shown that over the past couple of decades people’s attention spans have shrunk in measurable ways. Gloria Mark, PhD, of the University of California Irvine, talks about how the internet and digital devices have affected our ability to focus, why multitasking is so stressful, and how understanding the science of attention can help us to regain our focus when we need it. Learn more: Gloria Mark, PhD, Speaking of Psychology Home Page