What is Car Sickness?
• Car sickness is a form of motion sickness characterized by sensations of nausea and vertigo. It is caused by a conflict of information between the motion that you see and the motion that you feel. Usually, the brain relies on signals from the eyes and the inner ear to determine the body’s center of gravity while in motion. But when a second motion (e.g. the movement of the car) is added and the eyes and inner ears each report a different motion, the contradiction can result in sickness. If, for example, you are reading a book while the car is moving forward, your inner ears will sense a forward motion, but your eyes, which are looking at something that is not moving, will not confirm the forward motion.
