Originally posted by beachgardener It's basic science and some of the scaremongering going on is ignoring that basic science. 4G networks use frequencies 600 MHz to 6 GHz and 5G uses frequencies in the 28 GHz to (potentially) 300 GHz range. At this point, most 5G networks are using 28 GHz and 39 GHz. Most testing has stayed below 73 GHz and it's unlikely that 300 GHz will become a reality.
Mobile/cell phones, microwave ovens, cordless phones, millimeter waves, airport millimeter scanners, motion detectors, long-distance telecommunications, radar, Wi-Fi all operate between 1 and 300 GHz. Of course, mobile phones are low power devices. 1.5W vs your microwave oven's 1,200W.
28 to 300 GHz is still safely in the microwave frequency range. Beyond that, frequencies move into the infrared light range and from there into the visible light spectrum. Beyond that into UV and from there into the range of frequencies that are not so good for us.
At this point, most of us have been walking around with a mobile phone for 20-25 years and there has been no evidence of any detrimental effect, other than the aforementioned idiots driving while on the phone.