Do cellphones cause cancer? Most health authorities do not think so, but a new federal study could reignite the controversy over this issue. The preliminary study, released Friday, found that radiation from cellphones appears to have increased the risks that male rats developed tumors in their brains and hearts. But there are many caveats and some experts are debunking the study.

http://www.nytimes.com/2016/05/28/health/cancer-study-radiation-cellphones.html?ref=technology

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