Other studies have also shown that PCBs cause liver tumors (EPA 1996). One study, conducted by the National Cancer Institute (NCI) in 1978, found that a commercial PCB mixture caused a rare type of stomach tumor (gastric adenocarcinoma) in 6 of 144 exposed rats.
VR makers, at least in the fine print, want us to tread lightly through virtual territory. âThe Gear VR should not be used by children under the age of 13. Adults should monitor children (age 13 and older),â goes Samsungâs disclaimer for its new device. âProlonged use should be avoided, as this could negatively impact hand-eye coordination, balance, and multi-tasking ability.
VR Headsets: Best for Big Kids and Tweens Moving up in price and features are VR headsets. They're similar to viewers in that you download VR apps from the app store and insert your phone in them. Headsets work with the exact same apps as the viewers (except for the Samsung Gear VR and Google Daydream View) but give you a more immersive experience.