Try sleeping for a week with your cell phone on airplane mode and your wifi unplugged. It certainly won't kill you but it causes oxidative stress on your cells. 5G just ups the intensity to 11.
Counter to it significantly, there's a heap more powerful non-ionizing transmission than things you have locally in very similar bands, like hundreds of kilowatt TV and FM radio transmitters. Any "effect" you would be seeing is placebo or nocebo depending on the state of your "airplane mode" switch.
This nonsense is no better than anti-vax parents that believe because two kids at her children's school were diagnosed with autism and had vaccines that it must mean vaccines cause autism.
If you're going to make claims like this, at least provide some evidence otherwise it's not constructive to make such claims.
What is this supposed to do?