I absolutely agree with Dr. Olle Johansson and Dr. Andrew Goldsworthy.
I do not agree on one little point with Dr. Goldsworthy: that there are, maybe, good and bad frequencies. I don't believe that there are any good frequencies. I believe that all man-made electromagnetic fields above a level are bad for our health. I believe that the existing exposure limits are thousands of times above the levels where we have biological effects.
As we don't have much time, I will let others speak.