Motion sickness is caused by a conflict between the body's sense of vision and its sense of equilibrium and may worsen during turbulence. It can be eased by keeping your eyes fixed on a non-moving object.
If you suffer from motion sickness, try to obtain a window seat since being able to focus on the ground, sea or horizon can sometimes help. The middle of the aircraft near the wings is also usually preferable. Air sickness bags are available on board. Many over the counter preparations are available and we recommend passengers consult their doctor or pharmacist about the appropriate medications to use.