Researchers found a link between mobile phone radiation and cancerous tumors in rats, adding to the ongoing inquiry into whether the devices pose a risk to users even as officials cautioned against extrapolating the results to humans. There is “clear evidence” that male rats exposed to high levels of radio frequency radiation used in mobile phones developed cancerous heart tumors, the U.S. National Toxicology Program said in releasing a final report summarizing a 10-year study. Scientists found “some evidence” of the link when they released a draft report in February. The change followed a peer review. “The change from some evidence to clear evidence reflects increased confidence that the cancer observed in male rats was associated with exposure to radio frequency radiation,” John Bucher, a senior scientist at the toxicology program, said in an email. “NTP considers either category a positive finding of cancer.” In studies, rodents received radiation across their whole bodies, and at higher exposures and greater duration than what people experience, he said. “The exposures used in the studies cannot be compared directly to the exposure that humans experience when using a cell phone,” Bucher said in a news release. The Food and Drug Administration, which monitors… Read full this story
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