When older generations claim that excess smartphone can cause serious health risks, they may not be too far off after all. Both Apple and Samsung are being hit with a major class action lawsuit after RF Exposure Lab conducted an independent study on behalf of the Chicago Tribune, discovering that many cellphones produce unsafe levels of radio-frequency (RF) emissions. The lawsuit states that despite many claims of safety from the tech companies, “recent testing of [Apple and Samsung] products shows that the potential exposure for an owner carrying the phone in a pants or shirt pocket was over the exposure limit, sometimes far exceeding it–in some instances by 500 percent.”

The phones questioned in the lawsuit include the iPhone 7, iPhone 8, iPhone X and Galaxy smartphones, which are currently some of the most popular phones on the market. According to the complaint, Apple stopped making RF exposure statistics (including safe distances for talking on the phone) available for public viewing after the release of the iPhone 7. The suit claims that health effects of RF radiation exposure resulting from phone use include, “increased cancer risk, cellular stress, increase in harmful free radicals, genetic damages, structural and functional changes of the reproductive system, learning and memory deficits, neurological disorders, and negative impacts on general well-being in humans.” The Chicago Tribune‘s findings have caught the eye of the Federal Communications Commission, who will begin conducting a second test of the phones in question soon.

This lawsuit follows other bad news for Apple, as older MacBook Pro models have just been banned from flights due to potential battery fires.