Virtual reality can be nauseating. It tricks a part of the brain into believing the body is moving, when it's not. A disconnect between the systems (somatosensory and vestibular, to be precise) can make some people want to throw up. But an ongoingstudy at Purdue College of Technology suggests that a virtual nose could reduce simulator sickness in video games. When your movement isn't anticipated by the body's perceptual system, it triggers motion sickness. That explains why it's usually a passenger who gets sick in a moving car and not the person driving the car.