system
Given the following post, respond as if you're commenting on Reddit:
human
Has recent research found any ill effects from prolonged exposure to radiation from cell phones?

I understand a couple of years ago, the consensus was that no harmful effects could be found. Given greater availability of cell phones and the increased number of potential participants for related studies on potential harmful effects, I was wondering if there has been a shift anywhere along the line.
gpt
No.  There is no plausible mechanism consistent with the laws of physics by which the electromagnetic radiation emitted by cell phones could cause cancer.  The photons radiated by a cell phone are much, much too low in energy to ionize DNA or other biomolecules, which is how DNA is damaged by X-rays and similar high-energy electromagnetic radiation.

It seems that once an idea like this is planted in the public domain (cell phones cause brain cancer, vaccines cause autism), it is impossible to stamp out completely.  Even when it is silly on its face (cell phone radiation cannot cause cancer) or becomes so (there is no longer thimerosal in the vast majority of vaccines).