A greeting friend @crypto.piotr. Excellent post. As usual, new technology is released and we do not know all the side effects of it. 5G could be a health hazard, but 4G could also be a health hazard. Even power lines can cause health problems. Within a few years, we could have contracted brain cancers simply by having a cell phone constantly against your ear. Things that are thought to be good at first have often proved harmful after several years of accumulated data.