Of course, this study, like similar studies about smoking... is completely flawed.
Most modern cellphones are shielded on the "ear side" of the phone, to minimize the exposure to the radiative power of the phone. Go ahead, take your phone apart and look, you'll see the metal shielding.
Except... this doesn't help you if people around you are using their phone. Now you're on the unshielded side of their phone. Business meetings, subways, on the bus to work, in an elevator, and hundreds of places where you might be standing by or near a person using their own cellphone. The smaller the phone, the less the shielding (generally).
The same goes for smoking. Second-hand smoke is significantly more dangerous than first-hand smoke. Why? Because you, as a bystander near a smoker, are inhaling the smoke that isn't being filtered by the smoker's filter. Granted, the smoker's filter only filters a small percentage, but it filters more than you're getting.
Studies like this need to be more evenly-biased.
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