http://www.chem-tox.com/immunesystem/radiation/emr.htm

ELECTROMAGNETIC RADIATION (EMR)
WEAKENS IMMUNE SYSTEM -

Although not a chemical, electromagnetic radiation (also called EMR) has
been linked with numerous health effects, including immune system problems.
EMR has many sources and includes overhead power lines, radio broadcast
towers, telephone/television microwave transmission and computer equipment.
EMR is invisible radiowave energy that in some circumstances can change
biological function. For instance, it is well known that microwaves can heat
human tissue, thereby causing damage. However, even small amounts of
microwave energy has been found to cause oscillation (vibration) of the DNA
and genes without our cells. This research was conducted in 1984 at the
National Center for Devices and Radiological Health at the Food & Drug
Administration in Rockville, Maryland. According to Dr. Earl Prohofsky at
Purdue University in Indiana, "That’s worrisome because that’s about the
worst place in the body you’d want resonant absorption (vibration) - right
in the DNA." Other research has shown that microwave energy can actually
cause the chromosomes to uncoil.

for remainder of article see URL above