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iOS 7 making some users sick

The Guardian reported that iOS 7's new parallax, transition zoom, and other effects are sickening people who have vestibular disorders. The report states that the problem may affect 5%-to-35% of the population, and so far, there is no way to turn off most of the effects in Apple's new OS for iPhones and iPads.

The Guardian describes the problem:

Triggers and symptoms vary, but TidePool mobile app developer Jenni Leder's experience is not uncommon. A self-professed power-user, she frequently switches apps; but on iOS 7, this has caused headaches and feelings associated with motion sickness. "I now have to close my eyes or cover the screen during transitions, which is ridiculous," she told The Guardian, adding that there's nowhere to hide: "It's not apps that affect me, but accessing them. Tap a folder and the view zooms in. Tap an app and it's like flying through the icon and landing in that app's micro world and I'm getting dizzy on the journey there."

iOS 6, Android, and Windows Phone all lack the parallax effect and the shifting and sliding balloons in Messages. They also use transitions to a much lessor degree than does iOS 7.

iOS 7 allows users to turn off the parallax effect (Settings > General > Accessibility > Reduce Motion> Enable Reduce motion), there is no way to turn off the animations (zooming and sliding) in screen transitions.

Hundreds of posts in the Apple discussion forums have reported symptoms that people are experiencing, which include dizziness, vertigo, nausea, headaches, and anxiety.

Without an official way to downgrade to iOS 6, some users are resorting to buying a new older-model iPhone (the 4, 4S, or 5) that has iOS 6 preinstalled. One user posted, "After three days of complete dizzyness, I ran to Verizon today and got a new 4S and my cell phone nightmare is officially [sic] over."

The Guardian article reports that people who are unaware that they have a disorder are unsure of what is happening when they use iOS 7. Posts at the Apple discussion forums are also reporting this. One user (applefan1982) wrote "after about 5 minutes I start feeling extremely nauseous like I am car sick. I thought I was getting the flu."