10 Ways Motion Sickness Could Indicate Serious Health Problems
Motion sickness, also known as travel sickness, is a condition characterized by a disturbance of the inner ear or the labyrinth, resulting in spatial orientation as well as an impaired sense of balance and equilibrium. It is caused by a repetitive motion such as the movement of a vehicle, the motion of a plane in the air, or being on a boat. Although motion sickness may seem like a harmless condition, it may indicate a more serious problem.
10. When Does Motion Sickness Occur?

Approximately thirty-three percent of people experience motion sickness in mild circumstances, such as driving in a car on a smooth road, and up to sixty-six percent experience symptoms in severe conditions, including being on a boat in turbulent waters. Motion sickness can occur on a boat, in a car, on a plane, or when riding an amusement park ride. Only people who do not have a functional vestibular system are immune to developing motion sickness.