Uh, you're exposed to radiation all the time, by that definition. Much more so when you step out into the sun (despite the bears being outside I do hope you try

Uh, you're exposed to radiation all the time, by that definition. Much more so when you step out into the sun (despite the bears being outside I do hope you try to brave the solar radiation every so often). As it happens millimeter wave machines are a fancy way to say "EHF radio", which is very much non-ionizing and is not known to be harmful. One caveat is that any radiation beam that the body is not fully transparent to can be harmful at high power, but that is from the heat effect, not anything inherent to the radiation (i.e. it's the same hazard as standing under a heat lamp for too long).