It's basically mandatory to use some form of lead shielding for areas of the body not being xrayed, even with seconds exposure to xrays.
The 5g network, presumably, will be emitting 24x7.
At what point do those increases of frequency and constant exposure become a concern?
When birds fall from the sky when people turn on their phone.
Then the econuts will scream - or will they prefer their ‘super phone’?
The 5G network isn’t going to be emitting ionizing radiation. Its frequencies are in the gigahertz range; visible light, which we’re exposed to every day, is in the terahertz range, and X rays are in the petahertz to exahertz range (the higher the frequency, the greater the energy and thus the greater ease of ionization). For microwaves (gigahertz) to cause thermal burns, they have to be extremely concentrated as in the microwave oven, and at such concentrations you’d see trees and buildings catching fire (the concerns with microwaves is due to how water and fats are heated by large doses of them).
I never wear sunscreen on a daily basis. I don’t expect to get skin cancer unless I’m engaging in some kind of unnatural behavior, frankly. We need a certain amount of sunlight for vitamin D production, and perhaps it is not natural for us to be hiding in buildings so much on a daily basis anyhow.
The greater concern is of course who controls these networks.