HHS-OASH-2026-0397-3627 https://www.regulations.gov/comment/HHS-OASH-2026-0397-3627 As a substitute teacher in various school districts, I'm concerned by the cellphone addiction I see by my students. It's disruptive to getting schoolwork done and I worry about the effects of cellphone exposure on their mental and physical health. I'm concerned about cellphone use affecting risks of cancer, neurological and neurocognitive effects (including developmental outcomes, sleep disturbances and reproductive outcomes.