The World Health Organization announced today that cell phones pose a significant risk of causing cancer.

Cell phones are now labeled under "carcinogenic hazard," just like lead and chloroform.

You can download the full WHO report here.

Since cell phones are a relatively new technology, the study warns it could take years before the long-term effects are truly known.

From the announcement:

...one study of past cell phone use (up to the year 2004), showed a 40% increased risk for gliomas in the highest category of heavy users (reported average: 30 minutes per day over a 10‐year period).

Those results, among others analyzed by WHO, were enough to earn cell phones a "2b classification," meaning there is some risk for cancer.

Here's the full report, embedded below:

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