Well, yes. The radio stations broadcast in the tens to hundreds of kilowatts; strong WiFi ones are in the half a watt. UHF television pumps out megawatts in frequency ranges that overlap WiFi, for equivalent fields at distances of more than 1000 times the WiFi range (compare roughly ten meters to about 14 kilometers.)
As for radar – that one is directional and runs much more than broadcast power. No question you can get sick if someone points a few megawatts at you in a frequency range that you could use to cook food, and keeps it collimated so you get the full treatment.
Now about the physiological effects of microwatts per square meter of RF?
