Feb 22nd 2011 4:00PM
Talking on a cell phone for close to an hour has an impact on brain activity, according to the latest research on the subject -- but the long-term health effects remain unclear.A preliminary study in the Journal of the American Medical Association found that using the cell for 50 minutes was associated with a spike in brain glucose metabolism, which is a marker for brain activity.
The increased glucose metabolism happened in the area of the brain closest to the phone antenna, said scientists from the National Institutes of Health. What the results mean from a health standpoint isn't yet known.
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