Fear of missing out - aka FOMO - is not a new phenomenon. But the digital age and its speedy networks have scaled the experience to new heights. A lot of us switch tasks constantly - checking tweets, status updates, and the little flashing light on our phones that say another text has come in, all because we're worried we might miss something. It's behavior that goes hand in hand with our connected lives, and that global village McLuhan imagined, where everyone had to be with the group at all times, lest they be apart from it. But what is all this switching -this FOMO- doing to us? Dr. Gary Small is a neuroscientist, psychiatrist, and author whose research has found that digital media is actually changing our brains by rewiring our neural pathways.