You just started drafting a report for your boss when you remember that email you never finished replying to. Once you press send, your phone lights up with a new Instagram like, and you remember that you missed your friend's birthday...again. Before you know it, the rabbit hole of technology has set you back an hour.
If you think you've mastered the art of multitasking, think again. According to Dr. Adam Gazzaley, a neuroscientist at the University of California, your brain simply isn't optimized for split attention. Your prefrontal cortex is most challenged, followed by the visual and auditory areas of your brain, as well as the hippocampus. When you disrupt this system, you're bound to make mistakes and take much longer to complete important tasks.