Reducing Cell-Phone Radiation Risks

Are cell phones having an impact on our brains?


“This study shows that the human brain is sensitive to electromagnetic radiation coming out of cell phones,” study author Nora Volkow told The Wall Street Journal. “Our finding does not tell us if this is harmful or not.” Like a similar study backed by the World Health Organization last May, Volkow’s study concluded it will take more research to ascertain just how harmful. Regardless, since four in five American adults already own one, it’s urgent that we take precautions with cell phones.

Other researchers–especially those whom the cell phone industry didn’t finance–have already concluded that cell-phone radiation poses risks, especially to children. Their smaller heads and thinner skulls can allow the radiation to penetrate deeper into their brains. For example:

  • A 2009 analysis of 11 studies, published in Surgical Neurology, found that using cell phones for 10 years or more approximately doubles the risk of “a brain tumor on the same (ipsilateral) side of the head as that preferred for cell phone use.”

So, what can be done?

Some governments already mandate cell-phone labeling as a precautionary step. Both the city of San Francisco and the Israeli government require that manufacturers display the specific absorption rate (SAR)–the amount of radiation absorbed by the body–on their cell phones. And the governments of Finland, Switzerland, Germany, the UK, Canada, and Russia have also issued warnings advising cell phone users, especially children, to use headsets to minimize exposure to radio-frequency radiation.

Unfortunately, there’s not much movement on mandatory point-of-purchase SAR labeling in the United States. Companies like Motorola, T-Mobile, Blackberry, Kyocera, and Apple do include a few words of caution with their products already–in the fine print. If you page through your cell phone’s owner’s manual, you’ll likely find buried precautionary language telling you to hold the phone at least “one inch away” from your head, or to always place the device inside a bag or holster to block radiation into your body.

Still, Davis said, consumers can’t rely on cell phone companies for protection, since industry-funded studies often raise doubts about the independently funded studies that highlight radiation risks. She compares the cell-phone situation we face today to the lengthy struggle it took to prove tobacco’s health detriments.

“In both of those situations, I noticed a pattern,” Davis said. “First you’d have reports of harm to people. And then industry steps in to raise doubt of that harm.”


Take precaution. Search the government’s cell phone database ( to review SAR levels before you buy one. Then, limit your exposure–and especially your children’s exposure–to radiation. Use a headset or speakerphone, text more, and remember the “one inch” rule. Even if it strains your eyes, always read that fine print.

Tracy Fernandez Rysavy is editor of the Green American, Green America’s bi-monthly sustainable-lifestyles magazine.