NEW STUDY: Cell Phones Stimulate the Brain, but Health Effects for Kids Unknown

by , 03/04/11

Image © prima vera via SXC

The debate on whether or not cell phones cause cancer and whether or not cell phones are safe for kids, or adults for that matter, continues. A new study published in the Journal of the American Medical Association found that talking on a cell phone increases brain activity near the antenna. While the health effects of these changes are unknown, this study conducted by scientists at the National Institutes of Health is one of the first and largest studies to show that weak electromagnetic radiation, like the radiation from your cell phone, could alter brain activity. Study researchers conducted PET scans on participants as they held phones up to their ear for 50 minutes at a time. Those who had a phone that was turned on, had a 7 percent increase in their brain activity. So what does this mean for the growing number of kids who own cell phones or play games on iPhones?

Do you think cell phones are safe for kids?

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  • 25 Votes Yes, with limited usage
  • 73 Votes No
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According to recent stats, 22 percent of young kids ages 6 to 9 now own a cell phone. And when they get older, it gets worse — 60 percent of tweens 10 to 14 years old and 84 percent of 15 to 18 year olds have their own cell phone. These numbers don’t even look at the large number of younger children, toddlers and even infants who are allowed to play with mom and dad’s cell phones. Are they at risk?

While the study led by neurologist Nora Volkow, head of the National Institute on Drug Abuse, examined 47 adults, not children, it’s important to remember that kids’ developing tissues are more sensitive to radiation and their young age means they have many more years for the health risks to build up.

It’s unclear if “exposure to these external sources, two to three hours a day for five to 10 years [is going to result] in any untoward effects,” Volkow said. “And if you get exposed very early on when the brain is very plastic, would there be any detrimental effects? That’s an important question that needs to be addressed.”

Many young kids and toddlers are more involved with playing games or using kid-friendly apps on cell phones rather than holding the phones up to their ears to talk however. And the PET scans in this study did show that brain activity decreased in relation to the distance from the phone’s antenna.

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