Probably true, but this doesn't include teenagers, who appear to often do this, (when they're not texting or doing social media). I've tried to be very objective about this topic, and most of the studies I've seen have shown no link, but I will be interested to see this study - including the methodology and rates of exposure. To be honest, I really think teenagers, whose brains will continue to develop into their 20s, should limit their exposure. Not to mention that it would help them to develop maturity in other aspects of their lives..
The vast majority of adults have had cellphones for 10 years or more. People just aren’t keeling over from cellphone caused cancer. More BS hype to try to get more government money or to be able to sue “evil cellphone companies”.