When your brain takes in new information, it's unable to filter out the irrelevant information, thus slowing down the progress of your task at hand. In a 2009 Stanford study, students deemed "heavy media multitaskers" struggled to "pay attention, recall information or complete one task at a time." Evidence shows that even young "digital natives" are suffering from the distractions of their chronic multitasking.
However, Gazzaley insists: "You don't have to opt out of technology to get some of that brainpower back. In fact, there's a time and place for multitasking. If you're in the midst of a mundane task that just has to get done, for example, it's probably not detrimental to have your phone nearby or a bunch of tabs open. The distractions may reduce boredom and help you stay engaged."
Learn more about the effects of multitasking on your brain in the videos below.