"No solid medical evidence"?!?
Well, I suppose if one doesn't look for 'solid medical evidence' they won't find any. And of course, there's all the "evidence" that wifi/cell usage is NOT harmful (funded and published by 'the industry')...which is as valid as the evidence that smoking was not harmful we read for decades that was funded & published by the cigarette industry.
One could start by reviewing the clinical studies and research of Dr. Magda Havas, professor of Environmental & Resource Studies, Trent University, Canada who has proven increased heart rate, increase plasma glucose & red blood cell clumping (which significantly & negative impacts oxygen transport, which of course equals an increased heart rate).
The ignorance of some of these comments in defense of cell phones & wifi is both dismal and pitiful. I'd like to think that the average citizen of any country has read enough history to understand that the mass media of every country throughout time has been controlled by those that fund the media...and that has NEVER been valid, independent researchers & scientists.
There is a principle which is a bar against all information, which is proof against all argument, and which cannot fail to keep man in everlasting ignorance. That principle is condemnation without investigation. Herbert Spencer