"Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should." (Jurassic Park)
In the light of a recent study that found that cell phones increase the local metabolism of glucose in the brain, it's difficult to rest easy as to whether or not these findings should pose some concern. In our world of wireless networking, cell phone communication, and instant chicken pot pie, we're subjected to some form of radiation every day. While most fears are over-exaggerated and bordering on paranoia mostly because of a lack of knowledge, all fear can't entirely be ruled out. As Adrienne posted, magnetic fields can be used to treat depression, so controlled electromagnetic fields do have some impact on us. Attached is an IEEE review of a few books that attack this issue, which clearly shows that this discussion is completely open for debate still. Do you think electromagnetic radiation is a legitimate health concern, or are international standards protecting us entirely?
IEEE Spectrum: Murderous Microwaves