You cannot see it, taste it or smell it, but it is one of the most pervasive environmental exposures
in industrialized countries today. Electromagnetic radiation (EMR) or electromagnetic fields
(EMFs) are the terms that broadly describe exposures created by the vast array of wired and
wireless technologies that have altered the landscape of our lives in countless beneficial ways.
However, these technologies were designed to maximize energy efficiency and convenience; not
with biological effects on people in mind. Based on new studies, there is growing evidence
among scientists and the public about possible health risks associated with these technologies.
Human beings are bioelectrical systems. Our hearts and brains are regulated by internal
bioelectrical signals. Environmental exposures to artificial EMFs can interact with fundamental
biological processes in the human body. In some cases, this can cause discomfort and disease.
Since World War II, the background level of EMF from electrical sources has risen exponentially,
most recently by the soaring popularity of wireless technologies such as cell phones (two billion
and counting in 2006), cordless phones, WI-FI and WI-MAX networks. Several decades of
international scientific research confirm that EMFs are biologically active in animals and in
humans, which could have major public health consequences.
In today’s world, everyone is exposed to two types of EMFs: (1) extremely low frequency
electromagnetic fields (ELF) from electrical and electronic appliances and power lines and (2)
radiofrequency radiation (RF) from wireless devices such as cell phones and cordless phones,
cellular antennas and towers, and broadcast transmission towers. In this report we will use the
term EMFs when referring to all electromagnetic fields in general; and the terms ELF and RF
when referring to the specific type of exposure. They are both types of non-ionizing radiation,
which means that they do not have sufficient energy to break off electrons from their orbits
around atoms and ionize (charge) the atoms, as do x-rays, CT scans, and other forms of ionizing
radiation. A glossary and definitions are provided in Section 18 to assist you. Some handy
definitions you will probably need when reading about ELF and RF in this summary section (the
language for measuring it) are shown with the references for this section.
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