It is difficult to conduct a decent statistical study of cell phone radiation and health effects when there is practically no control group to compare with, and

It is difficult to conduct a decent statistical study of cell phone radiation and health effects when there is practically no control group to compare with, and when society and technology changes faster than cancer develops. Several years ago, I read a study that had done animal testing to find that there could be a link between cell phone-type radiation and a weakened immune response against cancer. (all rats had cancer, but the radiated rats were worse off) But since then I have not seen any follow-up. The field is ... tainted, because of all the charlatans at the fringe. It is difficult to get funding for a serious study, and if you do conduct a study, people will not look at you with a mild eye no matter what: it could be a career-killer.