Motion sickness occurs when one part of the balance-sensing system (inner ear, joints and muscles, or vision) may indicate that the body is moving, while the other parts do not sense motion. For example, when a person is in the cabin of a moving ship, the inner ear may sense the motion of big waves, but the eyes don't see any movement. This leads to a conflict between the senses and results in motion sickness.
|Primary Medical Reviewer||Anne C. Poinier, MD - Internal Medicine|
|Specialist Medical Reviewer||Brian D. O'Brien, MD - Internal Medicine|
|Last Revised||March 24, 2011|