Do you know that in 1997 US military mandated that only a Man (not woman who weighed at least 220 lbs and had a big head could handle an official cell phone and could not be on the line more than 6 minutes at a time? The reason could be hidden in this standard assumption.
Then how would you use it?
@dthomas89 As far as possible have ear plugs and use it hands free.
Then why do we have cell phones at all?
Microwave is dangerous too. It can send too much heat and radiation.
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Laptop too has a battery , wireless or blue tooth and emits radiation or may be connected to mobile cell phone wireless connection.
It can send radiation to your brain or cheeks and ear.