(Credit: doppel) For Americans, public speaking ranks higher on the list of fears than heights, blood, ghosts, clowns, flying, needles and…dying. Indeed, one in four Americans admits standing and delivering before a crowd of strangers is a dread inducing experience. On top of that, it’s hard to get through life without encountering situations that force us to confront this fear in some form, which may explain why it’s so pervasive. As such, there are countless remedies: picture the crowd naked, be yourself, breathe, tell a joke. There’s even limited evidence that a beta-blocker, propranolol, can reduce social anxiety in the short-term. But the designers of the doppel believe conquering your fear of public speaking is as easy as strapping on a wristwatch.