Guest guest Posted January 14, 2004 Report Share Posted January 14, 2004 " luckypig " Wed, 14 Jan 2004 21:08:45 -0500 Multi-D News New Swedish Study Links Mobile Phones to Brain Damage > NEUROSCIENCE: A SWEDISH STUDY LINKS MOBILE PHONES TO BRAIN DAMAGE. IN RATS, > ANYWAY. > By Elizabeth Svoboda > Popular Science > February 2004 > > http://www.popsci.com/popsci/medicine/article/0,12543,573349,00.html > > [see the link above for photos. -- DS] > > The safety of cellphones has been called into question, again. This time the > scientific community is paying very close attention. > > Last summer neurosurgeon Leif Salford and colleagues at Lund University in > Sweden published data showing for the first time an unambiguous link between > microwave radiation emitted by GSM mobile phones (the most common type > worldwide) and brain damage in rats. If Salford's results are confirmed by > follow-up studies in the works at research facilities worldwide, including > one run by the U.S. Air Force, the data could have serious implications for > the one billion plus people glued to their cellphones. > > The findings have re-ignited a longstanding debate among scientists and > cellphone manufacturers over cellphone safety. > > Many of the hundreds of studies performed during the past decade suggest > cellphone use may cause a host of adverse effects, including headaches and > memory loss. Other studies, however, have shown no such effects, and no > scientific consensus exists about the effect of long-term, low-level > radiation on the brain and other organs. A comprehensive $12 million federal > investigation of cellphone safety is currently under way but will take at > least five years to complete. > > Meanwhile, the research world is scrambling to replicate Salford's > surprising results. His team exposed 32 rats to 2 hours of microwave > radiation from GSM cellphones. Researchers attached the phones to the sides > of the rats' small cages using coaxial cables -- allowing for intermittent > direct exposure -- and varied the intensity of radiation in each treatment > group to reflect the range of exposures a human cellphone user might > experience over the same time period. Fifty days after the 2-hour exposure, > the rat brains showed significant blood vessel leakage, as well as areas of > shrunken, damaged neurons. The higher the radiation exposure level, the more > damage was apparent. The controls, by contrast, showed little to no damage. > If human brains are similarly affected, Salford says, the damage could > produce measurable, long-term mental deficits. > > The cellphone industry so far has been quick to dismiss the data, saying > emissions from current mobiles fall well within the range of radiation > levels the FCC deems safe (body-tissue absorption rates of under 1.6 watts > per kilogram). " Expert reviews of studies done over the past 30 years have > found no reason to believe that there are any health hazards whatsoever, " > says Mays Swicord, scientific director of Motorola's Electromagnetic Energy > Programs. Dr. Marvin Ziskin, chair of the Institute of Electrical and > Electronics Engineers' Committee on Man and Radiation, is similarly > skeptical. " The levels of radiation they used seem way too low to be > producing the kinds of effects they're claiming. " > > Salford is the first to admit that it's too early to draw any conclusions, > but contends the unusual results deserve a closer look. " The cellphone is a > marvelous invention; it has probably saved thousands of lives, " he says. > " But governments and suppliers should be supporting more autonomous > research. " Meanwhile, Salford advises users to invest in hands-free headsets > to reduce radiation exposure to the brain. > > Hotjobs: Enter the " Signing Bonus " Sweepstakes Quote Link to comment Share on other sites More sharing options...
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