Cellphone calls alter brain activity: study | Reuters

Cellphone calls alter brain activity: study | Reuters
Spending 50 minutes with a cellphone plastered to your ear is enough to change brain cell activity in the part of the brain closest to the antenna.

But whether that causes any harm is not clear, scientists at the National Institutes of Health said on Tuesday, adding that the study will likely not settle recurring concerns of a link between cellphones and brain cancer.

"What we showed is glucose metabolism (a sign of brain activity) increases in the brain in people who were exposed to a cellphone in the area closet to the antenna," said Dr. Nora Volkow of the NIH, whose study was published in the Journal of the American Medical Association.