"Most limiting"? Well that would be cardiac events I'd say but most of the time, for those who feel it and know what it is, it's pain. Either in the head or systemic. Pain and inflammation flow into my hands and up my arms around Wifi but intense pressure to my shoulders is where cell phones affect me. Headaches of varying degrees and locations. Some less acute but still would limit their life if they knew what was causing it...decrease of the vibrancy of the immune system would mean recurrent infections, increased susceptibility to other pollutants such as mold. Mood changes, depression that can be immobilizing, difficulty controlling blood sugar, high blood pressure, COVID, issues with the health of the blood so leukemia, bottle cap, rouleau (tootsie roll clumping of red blood cells = less oxygen and delivery of nutrients). Thyroid,hormonal issues, fertility, INFLAMMATORY conditons...MS, LYME, Fibromyalgia...See Microwave Symptom chart