A third of people are highly susceptible to motion sickness, and almost all of us have felt it at some time. Yet, it has long been a mystery why certain movements should make us feel nauseous.

If you’re prone to motion sickness, you know the feeling of panic that comes with the onset of symptoms like nausea, dizziness and an upset stomach. Motion sickness manifests in different ways ...

adding that researchers are still not clear on why some people are more sensitive to motion sickness. She recently completed a study with an automaker that looked at longitudinal jerk ...