Soooooo I could give you an intellectual answer... but I figure if you want an intellectual and fact fill answer, the best place would be to write a question here on Quora https://www.quora.com/
Otherwise, I can say that as far as I know, electromagnetic radiation from cellphones and computers etc... hasn't affected my health. And so I will continue to use them as I have normally have. I'm not worried.
In general it would be hard to tell where sickness or disease come from, if there is no apparent source. Like with GMO's for example. It's hard to tell with anything that is long term.
If there were immediate results from using them, then its easier to see/say that they affect your health.
If it turns out that it did affect my health, I won't be worry or regretful as I did the best I could with what I knew and had available. Plus, worrying and stressing about the radiation would do probably more harm than the radiation itself, if you know what I mean.