With widespreading of PWM, thanks to cheap power MOSFETs we now have tons of RF noise around, really. :)

Any modern device is a source of RF noise, sometimes noticeable, depending on power consumption, shielding and filtering.

However, all that stuff is barely harmful. Humans have pretty good resistance for RF, for unknown reason. Interesting, is that just occasional side effect of human body design or there is something mysterious in our past that lead to development of RF protection in humans?