Why do you get motion (or simulator, or VR) sickness? The short answer is that there is a disconnect between what your body is telling your brain and what your eyes are telling your brain. Your body is telling your brain you are moving (or not moving) while your eyes are telling your brain that you are moving at a different rate or, in a different direction. The effect is not unlike getting seasick on a boat. In VR, you can be sitting still, but the world can be rotating, or you can be walking, but the world can be moving at a different rate or angle. This can cause you to feel ill. Some suggest that to your body, the feelings are similar to being poisoned, so your body tries to get rid of that poison, by vomiting.
The effects ...
