Research is currently ongoing to determine a possible connection between prolonged exposure to RF radiation & a certain type of brain tumor called glioma! These aside, when you constantly look at your phone screen (e.g. playing games) you tend to feel anxious, depressed or have tantrums when you're not with your phone. When you have it, it's all you think about. You just can't pay attention to the real world around you anymore. As you get addicted & glued to your phone screen long into the night, your sleep hours are significantly reduced, causing sleep problems like insomnia, headaches & anxiety. All these in a long run, could take their tool on your physical & mental well-being. In short, the more people get obsessed with their smartphones, the more their level of exposure to radiofrequency radiation, heat & glare. And the more the physical & mental health consequences. This is particularly common among young people nowadays.