The planet itself emits lots of different kinds of waves and/or frequencies, humans would adapt regardless so meh.
Also, people would gain hearing loss first, if said issue is real, but a LOT of people would gain hearing loss from using headphones and playing loud music before something like a cell phone would ruin your hearing (since you make calls like what? A few times a day, while someone listening to music may listen with a headphone or loud speaker for hours?)...