Apple's new design style in iOS 7 has had plenty of detractors, but some may have genuine cause for complaint: the zooming and parallax animations across the new operating system have been giving some users bad cases of motion sickness. "The zoom animations ... are literally making me nauseous and giving me a headache," Apple forum user Ensorceled writes. "It's exactly how I used to get car sick if I tried to read in the car." Other forum users are reporting feelings of illness, eye pain, and dizziness as well.

"I had severe vertigo."

Though Apple does include an accessibility option called "Reduce Motion," the feature seems to primarily remove the shifting parallax effect seen on the homescreen. However, it seems that most users aren't finding fault solely with the homescreen. Instead, most are pointing to the zooming effects that are now ubiquitous across iOS when opening and closing apps or entering the multitasking menu. "I had severe vertigo the minute I started using my iPad with iOS 7," writes Apple forum user glassrabit. "Lost the rest of the day to it." Another user, nybe, writes, "I had to go home 'sick' from work because of the intense nausea due to using my iPhone with iOS 7."

Most of the users commenting in Apple's forum report having called the company's support line only to be told that there was no way to fully disable the effects. Many say that they've resorted to downgrading their devices to iOS 6, which did animate the way that apps opened, but did so in a way that was quicker and didn't involve flying into or out of the screen. "I've had zero issues with any iOS version prior," writes Apple forum user BurgerKing. We've reached out to Apple for comment on the motion sickness issue, and will update if the company responds.