So the article mentions: "... suggested that long-term exposure to radio-frequency electromagnetic fields (RF-EMF) emitted by mobile phones was related to oxida

So the article mentions: "... suggested that long-term exposure to radio-frequency electromagnetic fields (RF-EMF) emitted by mobile phones was related to oxidative stress, increased inflammation, and DNA damage, all of which could lead to the development of hypertension." I'd assume that talking through DECT or WiFi has similar effects, which would mean that there is no safe way to phone wirelessly longer then 30 minutes a day. Should I put my aging mother on a wired phone and internet connection just to be on the safe side? Or is that tinfoil hat territory?