Why iOS 7 is making some users sick

What does it mean “getting dizzy”?
Read this interesting article from Guardian about iOS 7, new Apple operating system.
Apple’s new mobile operating system for the iPhone and iPad, iOS 7, is stark and minimal, yet dynamic. It makes frequent use of zoom and slide animations; the home screen boasts parallax, with icons apparently floating above subtly animating wallpaper. And it’s making people sick.
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.”
This wasn’t the case under iOS 6. That system wasn’t devoid of triggers (full-screen slide transitions being fairly common), but zooming was minimal and parallax was absent, as were gamified animation effects such as subtly shifting and sliding balloons in Messages.
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