This article like the telegraph is utter bs. The power output of a mobile phone by standard is a max of 1 watt. And even then the mobile phone does not use 1 watt constantly. Hell, if it was the case that we were getting damaged by these ranges of frequency bands we wouldn't be having WIFI all over the place for the same reason. Now Hypothetically if one was to be stupid enough to stand next to an active Mobile base-station antenna then yes, you would start having head-aches because of the emissive power concentration from the antenna, and also the fact that base stations are at max i think between 30-50 watts.