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Questions have been raised about whether cell phones might elevate cancer risks because they emit radio waves, a form of non-ionizing electromagnetic radiation.
Most studies have uncovered little or no overall increased cancer risk within the first 10 years of cell-phone use. But brain tumors can take a long time to develop. And some new research suggests that risks might increase after a decade or more of cell-phone use.
[ILLUSTRATION OMITTED]
A Swedish team of scientists found that the chance of developing a malignant brain tumor doubled in some people who used cell phones for 10 or more years, according to an analysis of four case-control studies in the May 2008 issue of the International Journal of Oncology.
Longtime cell-phone users were also 2.4 times as likely to develop a benign tumor, the analysis of three other case-control studies showed. The association s were positive only for tumors on the side ...