Mind

#69: Cell Phones Alter Brain 
Metabolism


A 50-minute phone call boosts metabolism in the brain regions closest to the antenna, including areas involved in language, decision making, and emotional processing.

By Pamela WeintraubJan 5, 2012 12:00 AM
cellphone.jpg
iStockphoto

Newsletter

Sign up for our email newsletter for the latest science news
 

While researchers debate whether microwaves emitted by cell phones might cause brain cancer, a study published in the Journal of the American Medical Association last February raised an entirely different concern. Lead author Nora Volkow, a psychiatrist at the National Institute on Drug Abuse of the National Institutes of Health, recruited 47 healthy volunteers and used positron emission tomography (PET) scans to measure glucose metabolism in the brain while cell phones were placed over the right or left ear. She found that 50-minute cell phone calls increased metabolism in the regions closest to the phone antenna—specifically, the orbitofrontal cortex and temporal pole, which are involved in sensory integration, language, decision making, and social and emotional processing. Volkow has other studies underway to determine how long the stimulating effects persist.

The next big question is whether the increase in brain metabolism could lead to neurocognitive damage down the road. Volkow does not yet know but says that “true evidence of harm might emerge only after years of extensive use.” Children could be especially vulnerable because their brains are still developing. As for adults, Volkow notes a possible upside: Radio waves akin to cell-phone signals might be therapeutically useful for stimulating the brains of patients suffering from ischemia or stroke.

1 free article left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

1 free articleSubscribe
Magazine Examples
Want more?

Keep reading for as low as $1.99!

Subscribe

Already a subscriber?

Register or Log In

More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 70% off the cover price when you subscribe to Discover magazine.

Copyright © 2021 Kalmbach Media Co.