What you don't know could hurt you, Randall Stross reports:

WARNING: Holding a cellphone against your ear may be hazardous to your health. So may stuffing it in a pocket against your body.

I’m paraphrasing here. But the legal departments of cellphone manufacturers slip a warning about holding the phone against your head or body into the fine print of the little slip that you toss aside when unpacking your phone. Apple, for example, doesn’t want iPhones to come closer than 5/8 of an inch; Research In Motion, BlackBerry’s manufacturer, is still more cautious: keep a distance of about an inch.

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