Very few people hold a phone to their head anymore.
Further, we are inundated with “radiation.” It comes from the sun and from thousands of pieces of technology from lights to garage door openers to the microwave downlink between your city and the next. If there was a clear link to small does of radio energy and cancer we would know about it in clear, uncertain terms. Another study recently posted on FR said exactly the opposite of this one.
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..