HHS-OASH-2026-0397-5174 https://www.regulations.gov/comment/HHS-OASH-2026-0397-5174 I am writing as an individual consumer/patient and am hypersensitive to electromagnetic radiation. I had lived in NYC for several decades but had to move out (to a small town in a rural area) when wifi was installed on the subways in NYC, and many were using their cell phones on the subway. (People get around in NYC primarily by public transportation so the subways are generally crowded.) I moved out in September 2019. My symptoms when exposed to RF/EMF are cardiac and tingling in my hands and feet. An additional likely symptom, based on an overnight EEG which showed a “blip of a partial seizure,” is that my brain becomes “irritable.” I develop a weird sensation in my heart when exposed to cell phones. If the exposure is strong enough and long enough, the sensation flips into an arrhythmia. It is much worse in a confined space where the cell phone puts out a stronger signal. The worst incident of this happened when a friend drove me from NYC to Hudson, the small town where I now live. She used GPS on her cell phone for the entire trip which was maybe 1 to 1 1/2 hours even though I asked her to turn it off. I developed a severe arrhythmia which continued for 6 to 8 months after the exposure on the drive. I saw a cardiologist to evaluate same, but it took months to get the appointment since the provider came to Hudson from Albany only occasionally. By the time I saw her, the arrhythmia had stopped. After testing, she said that my heart was “strong” and that the prolonged arrhythmia was the result of exposure to a “stress”—obviously the cell phone radiation in a confined space. If I walk down the one main street in the little town where I now live on a sunny day—when lots of people are always out walking many looking at their cell phones, I develop the “weird sensation” in my heart so I can only walk on the lovely main street at night or on a rainy day when few people are out and so there is little cell phone exposure. Neurological symptoms include tingling in my hands and feet even when exposed to even relatively minor amount of RF/EMF. The other likely neurological symptom started when cell phone towers first went up. I saw a neurologist for another symptom, and he ordered an overnight EEG. He said that on the overnight EEG, I had a “blip of a partial seizure.” He said that I did not have a seizure disorder but rather that my brain was “irritable.” I then told him about recent experiences of being a block or two away from my apartment building, where everything looked familiar, but for a minute, I could not figure out how to get back to my apartment building. Then I would know how to get back. In a similar manner, when I changed subway trains, I sometimes would have a minute in which I could not figure out how to get from one train to another even though I had changed trains in the same place hundreds of times. Then it would come back. The neurologist said that this was the “blip of a partial seizure.” I started taking two capsules of magnesium taurate 3X per day, and this stopped these episodes. When I tried to stop early on, these episodes would return so I have been taking the magnesium taurate ever since. I do not know for sure that my brain being “irritable” was caused by RF/EMF, but it seems likely.