NIH Study- Cell phone radiation alters brain activity

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There have been a number of controversial reports available that provide link between cell phone use and its harmful effect on your brain.  Cell phone industry continues to claim that their products are safe; there is still no scientific data available to prove this.  A recent study published in the Journal of the American Medical Association, considered the most prominent, to offer scientific evidence that cell phones affect brain metabolism.  The study was conducted by the National Institutes of Health.

About the Study
Researchers followed 47 participants who underwent two brain scans. During the study, cell phones were placed next to both ears while the participants underwent brain imaging using positron emission tomography (PET scans). Participants were given an injection of glucose to measure brain activity; brain cells use glucose as a source of energy.

During one scan, a cell phone connected to a muted call was attached to participants’ right ear; during the other, they were with turned off phone. Neither the participants nor the researchers knew when the cell phones were off or on.

When the phone was turned on, glucose metabolism in the section of the brain nearest the antenna was about 7% higher than when the phone was off.

“This study shows that

the human brain is sensitive to this electromagnetic radiation,” said Dr. Nora Volkow, a director with the National Institutes of Health and lead researcher for the study. “Whether this electromagnetic radiation has...



any negative consequences, that is something that needs to be properly evaluated.”

In essence, cell phone is like a radio. When you talk on your cell phone, your voice is transmitted from the antenna as radio frequency radiation (RFR). Depending on how close the cell phone antenna is to your head, between 20% and 60% of the radiation emitted by your cell phone is transferred into your head.

Well! Phone is the one of the basic necessity of human life. The best way to avoid these radiations is to have a cell phone that can work on speakerphone. Doing so, you can greatly decrease your exposure to harmful radio frequencies (RF).

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15 Responses

  1. Chaz says:


    Hmmm… I seek to have missed the logical connection between establishing that changes occur in response to em radiation and the assertion that such radiation is harmful.

    I think I’ve seen a separate study somewhere that suggested cellphone radiation to help fight some forms of mental infirmity…

  2. Hal Davis says:


    You can still get a wired (not Bluetooth) earpiece for $7 that moves the antenna well away from the head.

  3. gen says:


    Chaz, the radiation is harmful because it damages the blood brain barrier, potentially allowinf substances to pass to the brain that normally wouldn’t. If you still don’t understand, google blood brain barrier.

  4. kelly says:


    I am MRI tech we do this type of test. it does show difference between people how use the cell phone and people don’t use it. I know some people don’t realy have cell phone for that reason. bluetooth can be the answer. or texting….

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