Electromagnetic Fields
Bioeletromagnetics
(BEM) is an emerging science that studies how living
organisms interact with electromagnetic (EM) fields.
Electrical phenomena are found in all living organisms,
and electrical currents in the body can produce magnetic
fields that extend outside the body. Those that extend
outside the body can be influenced by external magnetic
and EM fields. Changes in the body’s natural fields
may produce physical and behavioral changes.
Endogenous
(internal) fields are distinguished from exogenous (external)
fields. The latter can be natural, such as the earth’s
geomagnetic field, or artificial, such as power lines,
transformers, appliances, radio transmitters, or medical
devices. Oscillating nonionizing EM fields in the extremely
low frequency (ELF) range can have vigorous biological
effects that may be beneficial. Changes in the field
configuration and exposure pattern of low-level EM fields
can produce specific biological responses, and certain
frequencies have specific effects on body tissues.
EM
Research & Studies
The
mechanism by which EM fields produce biological effects
is under increasing study. At the cutting edge of BEM
research is the question of how endogenous EM fields
change with consciousness. Nonionizing BEM medical applications
are classified according to whether they are thermal
or nonthermal in biological tissue. Thermal applications
of nonionizing radiation include radio frequency (RF)
hyperthermia, laser and RF surgery, and RF diathermy.
The
most important BEM modalities in alternative medicine
are nonthermal applications of nonionizing radiation.
Major new applications of nonthermal, nonionizing EM
fields are bone repair, nerve stimulation, wound healing,
treatment of osteoarthritis, electroacupuncture, tissue
regeneration, and immune system stimulation.
In
the study of other alternative medical treatments, BEM
offers a unified conceptual framework that may help
explain how diagnostic and therapeutic techniques such
as acupuncture and homeopathy may produce results that
are hard to understand from a more conventional viewpoint.
Adapted from Alternative Medicine: Expanding Medical
Horizons, a report prepared under the auspices of
the Workshop on Alternative Medicine, held in Chantilly
VA on September 14-16, 1992.
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