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New Technique to Study Cell Phone Radiation Impact

USA- New York, NY | Jan 9 2013 | (22:58:59 - EDT)

Concerns about the health risks associated with cell phones date back almost to the dawn of the industry. Over the last four decades, while cell phones shrunk and multiplied and worked their way into the very fabric of human existence, the vague threat of danger has slunk along behind like a faint but troubling and unshakeable odor: do what they could, scientists couldn’t quite eliminate it, and they couldn’t quite define it, either. The best they’ve been able to do is say that the radiation coming from cell phones may or may not cause cancer.

What’s been holding researchers back up to this point is that, unlike x-rays and other forms of high-energy, ionizing radiation, low levels of radio-wave exposure don't have the power to penetrate cells and blow apart bits of DNA.

For radio frequencies from cell phones to cause genetic mutations in brain tissue, the tissue must absorb an obscene dose of them, and scientists simply don't know whether or not that's happening--even in people who spend the better part of their days holding the little energy-emitting devices flush against the side of their heads.

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To get a definitive answer, researchers need to be able to measure exactly how much radiation the brain absorbs during normal cell phone use--and they might finally have a way of doing it.

Radio frequencies get transferred to heat when they’re absorbed by brain tissue, and those heat signatures can be detected by magnetic resonance imaging. Unfortunately, because of the intense magnetic fields involved, you can’t just put someone inside of an MRI with a metal-laden cell phone and measure how much warmer her brain gets.

In the past, researchers have used electrical probes to emit energy inside of model brains, and then measured the resulting heat signatures. But such simulations have never been close enough to the real thing to yield conclusive results.

Please visit Emily Elert on Popular Science to continue reading "New Technique to Study the Impact of Cell Phone Radiation."

Source and Images Courtesy: Emily Elert, Popular Science

 

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