Motion sickness arises from a conflict within the sense. This is when actual movement is different from expected movement.
It is important to note that either perceived or real motion can cause motion sickness.
Motion sickness is directly attributed to a system of the body called the vestibular system. This system is involved in balance and transmits information to the brain about what's happening around you.
The vestibular system is directly controlled by the autonomic nervous system and therefore cannot be controlled by the sufferer.
