When you get your first self-driving car, don't forget to put a few barf bags in it... just in case. A duo from the University of Michigan's Transportation Research Institute explains that you'll likely be more susceptible to motion sickness in self-driving cars due to a couple of reasons. First, since you don't directly control it, you can't always anticipate every turn, swerve, stop, change in speed, etc. This disconnect between what you see and how the car moves affects balance, which is why drivers don't suffer from the condition as often as passengers do. Second, people are bound to do activities that amplify its symptoms.