Over time we have gotten used to the idea that some things we cannot see, can still cause us harm.  In fact, much longer ago, say 1,500 years, people were concerned about vaporous humors floating out of swamps and causing illnesses.  Those ethereal malefic influences often proved to be tiny creatures like mosquitoes carrying invisible ones like bacteria.  Since Rachel Carson proved that DDT was ruining our world despite its invisibility, we have learned to be skeptical about all kinds of things.

Most of us, including me, would rather not have to worry about something else, especially another invisible but ever present hazard.  A new study dealing with electromagnetic radiation provides an unpleasant jolt to our complacency.  Given the strength of the study and the potential impact of the finding, I am more than a little surprised by the lack of media attention.  Maybe that is because no one really wants to believe it, especially electronic media workers and their bosses?

Whatever else anyone has to say, good or bad, about Kaiser, clinical records of Kaiser patients are a goldimine for researchers.  Dr. De-Kun Li is a researcher working for Kaiser, specializing in reproductive and hormonal health studies.  Years ago, this group found that exposure to electromagnetic fields (EMF) doubled the risk of miscarriage for pregnant women.  This time they studied pregnant Northern California patients, looking for an association between EMF exposure and asthma.  The study design was particularly strong for this kind of research.  They gave over 800 pregnant women monitors to wear, measuring EMF exposure during pregnancy.  The children were tracked until age 13 to learn which of them developed asthma.

Children of women with the highest levels of EMF exposure during pregnancy were three times more likely to develop asthma than children of the least EMF exposed mothers.  The greatest EMF exposure came from home appliances (hair dryers, microwave ovens and vacuum cleaners).  The meters used did not measure radio frequency energy, so this study teaches us nothing about smart meters, cellphones and the wireless networks all around us.  Dr. Li, however, has also expressed his concern about radio-frequency exposure.

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Michael Carlston, MD is an internationally recognized authority in the integration of conventional and complementary medicine in clinical practice, as well as medical education, research and organizational consulting. Practicing in Santa Rosa, California, Dr. Carlston was voted “Best General Physician In Sonoma County, California” by readers of the Sonoma County Independent newspaper and also named one of the outstanding physicians in the Bay Area by San Francisco Focus Magazine. With 30+ years in private practice, his expertise is in nutrition, homeopathy and sports medicine.

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