When that kind of mixed messaging happens, you might feel nauseated or dizzy, especially if you're prone to motion sickness. "As a result, this creates a type of confusion where your eyes sense one thing and your inner ear and body detect something else," says Christina Finn, OT, associate professor of occupational therapy at New York Institute of Technology in Long Island. While your eyes are focused on a stationary object, the rest of your body perceives movement (you are technically moving at the speed of the vehicle, even though you're sitting still in your seat). One of the most familiar examples of visual vestibular conflict is if you feel sick while trying to read in the car as a passenger. This is called visual vestibular conflict. "Cybersickness occurs when your brain receives messages that you're moving-for instance, by a flashing screen-when you are, in fact, still," explains Gillian Isaacs Russell, PhD, a psychotherapist in Boulder, Colo. But really what's going on in your brain and body when it happens?
You may feel nauseated, your head might start aching, and in some cases, you might even feel dizzy or foggy-brained. Too much screen time isn't good for anybody, but for some individuals, being on screens for prolonged periods can cause cybersickness, which experts say is similar to motion sickness in several ways.
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