[fsh]

Possible health effects of non-ionizing radiation have been studied in all kinds of frequency bands for many decades. So far, no significant effects that go beyond heating have been found, and there is no known mechanism that could cause such effects.

[hnhg]

To argue devil's advocate, the scientific literature commenting on this says that existing studies are in too short a timeframe to draw long-term conclusions. I haven't dived into this other than a search on PubMed so it's a question of faith either way.