Human beings are electrical systems. Our hearts and brains are regulated by internal bioelectrical signals. Environmental exposures to artificial EMFs can interact with fundamental biological processes.
human nervous system runs on 60 millivolts.......this threshold is easily over run in today's EMF rich environment.
it is MOST important to minimize this exposure while sleeping, when our body repairs itself.....turning off breakers to the bedroom, grounded wire screen shielding 4' up wall on aside and behind headboard and underneath bed can usually cut background EMF to 20-30 millivolts.
a low cost digital millivoltmeter can be used to test an area by wetting fingers and holding end of one probe....while grounding the other probe into GROUND terminal of a grounded electrical outlet.