[OneDeuxTriSeiGo]

Studies have all come out clean on pacemakers and mmWave. No detectable interference in the hardware or on an EKG while in a mmWave scanner.

I could imagine other conditions potentially but pacemakers have been ruled a non issue for mmWave by academic studies (albeit I can understand still exercising caution despite that).

[kmoser]

Have they done thorough, decades-long studies on millimeter-wave machines to ensure they have absolutely no long-term adverse health effects?

[OneDeuxTriSeiGo]

Tbh I'm not sure but they've done accelerated dosage testing to simulate long term use by repeatedly exposing people to use of the machine over a more frequent period of time.

But mmWave really just is not dangerous. Current generation 5G cellular and WiFi standards are mmWave and they are just as harmless.

Molecular damage just starts showing up with THF/terahertz emissions band but mmWave is in the EHF and is has more than 10x the wavelength of THF (i.e. it is far wider/more gentle than THF). In a very real sense mmWave can't even interact with most of the molecules in your body.

mmWave can interact with the water in your body but at the levels it's being used it's only really useful for seeing the water. You'd needs orders of magnitude more powerful emissions than what these scanners use to actually cause damage at that frequency.

i.e. It's the difference between using the flashlight on your phone to see in the dark and using the concentrated light from solar-thermal heliostats to boil water or heat molten salt. No matter how hard you try, your flashlight is never gonna boil water.