Just saw this comment.
I think radio communications have been heavily scrutinized, but there is a lack of peer-reviewed well-funded research regarding more controversial hypotheses, like their effect on Voltage Gated Calcium Channels. There's also been research that suggests DNA strand breaks do occur from non-ionizing radiation that has been suppressed, and other hypotheses as well that have not been studied extensively.
Also, I'm not just talking about cancer.
There is research from both the "it's safe" and "it's dangerous" perspectives. However, the "it's dangerous" perspective gets almost no funding despite being scientifically sound and published by scientists who used to be respected before they dared question EMF safety.
I have no doubts that current levels of EMF do not cause major issues in the majority of people. Our bodies have several evolved mechanisms to handle it. But I think it is very plausible that a minority of the population with other toxic burdens could be sensitive to it. There is an entire population of people migrating to rural areas just to avoid EMF so they feel better. I don't think they are making this up. It's a HUGE life change to do that, and no one would do that unless they had no other options.
I find the VGCC work of Martin Pall very compelling, but I do not have links on hand, as EMF is not something a spend a lot of time focusing on. Googling him will bring up plenty of info, but you will probably have to dig a bit to find his published scientific work rather than just interviews on holistic websites.