I thought it was proven that cell phones held up to the head can cause cancer?
No it doesn’t.
you're saying the wifi antenna isn't dangerous?
That's right it isn’t.
I know another poster here who works for AT&T and he was called to an upscale home whose owner was told by his, “Healthcare Provider” that the WIFI from his Uverse modem was “keeping him awake at night”. So he connected all his devices with cat 5 cabling. After he went to his laptop and saw that the only WIFI signals were coming from other homes in the neighborhood. The tech didn’t ask why his neighbor’s WIFI wouldn’t “keep him awake.” (He knew better).
The whole electromagnetic radiation scare came about from what happened to a guy who worked at the top of the Empire State Building. All the broadcasters who transmit from the Empire State Building collectively hired a staff of techs to look after every thing. (the “Tower Association”). One of them after working there 20 years came down with multiple sclerosis. It is considered probable that this poor guy would have come down with MS regardless of where he worked. His story came out and some took it as evidence that radio waves are bad. If the field strength is high enough parts of your body can be burned, yes radio waves can hurt you. But with the field strengths encountered from cell phones and WIFI are insignificant.
Consider this: AM radio has been commercially transmitted for 91 years. FM for 72 years. TV for 72 years.