How often does this happen to you? You reach into your pocket to take out your phone because you just felt it vibrate, but when you take it out you notice that you didn't actually get a call. You're so used to your phone vibrating that now you're experiencing phantom vibrations. If this sounds familiar, you're not alone.

In fact, 90 percent of people say they experience phantom vibrations. Some people have even given a name for this phenomenon, such as ring-xiety and hypovibochondria. One research psychologist suggests that it could become an obsessive-compulsive disorder, much like frequent hand-washing.