External sources (outside your home) of non-thermal electromagnetic radiation (EMR) are ubiquitous: microwave towers, high-power lines, electrical transfer/relay stations, smart meters, cell phones and smart phones. Smart Phones are especially noxious because microwave towers use phones that are not powered off as relay devices for their signals, regardless of whether the phone is in use placing or conducting a call.
It is vital to note that the above sources of EMR are non-thermal: they do not generate heat, and therefore provide you with no early warning, no physiological means by which most people can recognize that they are causing harm at a biological and metabolic level. Because there are no government standards (in North America) that establish safe human exposure limits for non-thermal radiation a person can not assess their exposure level without specialized equipment. While telecommunications companies insist that the levels of EMR their products and towers radiate fall well within government limits, they are referring of course only to the limits for thermal radiation.
There are three forms of electromagnetic radiation that emanate from manmade devices: static electric and magnetic fields, AC electric and AC magnetic fields, and radio frequency radiation. The potential risks they pose to human health vary in accordance with field, field strength, voltage, current, charge, grounding, frequency, wavelength, and power density. There are countless scientific studies that portray the ability of EMR to adversely affect humans (as well as plants and animals) at the cellular level, studies that show they diminish the ability of cells to defend themselves, and disrupt a cell’s natural ability to produce healthy new cells. Cellphones, for example, when carried in immediate proximity to the body, have been shown to result in the production of ineffectual sperm cells and impenetrable ovum, catalyze rogue cells in breast tissue, and cross the blood-brain barrier.
Fortunately, standards that set limits for acceptable levels (there is no such thing as safe levels) of human exposure to non-thermal radiation do exists, courtesy of IBE. And there are ways to mitigate personal exposure, without sacrificing the conveniences of modern communication—many of them are free and easy to incorporate into daily habits.