> I wonder what are the main causes of emhs generally for most people? How
> would the list.look like, from the maim to the least cause?
Many people blame it on the deteriorating health of the person in general -- for example, an accumulation of heavy metals and chemicals in the body, or chronic low-level infections that are not recognized or treated by mainstream medicine.
For me the major cause was 5 cordless phone bases in my home for 10 years. Another cause was use of medical electronic equipment such as a Rife machine and going to practitioners who used such. plus lots of CT scans as my internist struggled to find what was wrong with me.
Accumulative exposure over time causes symptoms. It might depend on what you are exposed to how you react, since there are such a variety of forms of EMF and so many different symptoms from person to person.
It also depends on the strength of your exposures, how far you are from the sources of exposure, and how much time you are exposed. There's no one size fits all list, though I would have to say typically wifi routers tend to create the strongest signal if you are close to it than anything else.