after ghosting here for several years, i think it is time to get involved ;-)
I think the environmental factor for AI disease are heavy metals, especially mercury. The fact that even here no one states this so plain and clearly is just the proof how propaganda changes perception. It is hard to avoid this.
Speaking for myself, despite knowing of the toxicity of mercury since i can think, i needed about five to then years to see the truth ad realize that all those minor ailments and shortcomings are real and not random, genetic or in my head.
Mercury changes Sugar proteins on the surface of our cells, the id card to be recognized as "self" by the immune system.
Apart from that, mercury attack the human body and the immune system at any level. There is not the question if the body looses the fight, only when and which symptom at first. Regarding thyroid, i would remind that mercury will bind any selenium it approaches.
Here in Germany i read a statistic from the 90`s, that 95% of all adults have had silver fillings. The rest of 5% certainly have had a mother with silver filling, which means that the baby receives about 40 % of the mothers body load of mercury. Today for me it is so obvious, when i see a child that has the typical mercury symptoms, but our society think it is normal for a 5 year old to have eye glasses, weak immunity, ADHD, bad character, emotional unstable etc.
I can only say, read the books like those from Cutler and anything from the net, like toxcenter e.V. repeatedly. It takes time to reprogram the brain to finally see the truth.
Regarding the H2O2 (Hydrogen-Peroxid) formation from Iodine i would say that it is just a total theoretical possibility with zero bearing in real life. The human body does not have real problems with H2O2, because it is designed to handle it. As long as all systems are working like intended.