Should you be worried about your cell phone causing cancer? We don't really know yet. Formal studies on potential cell phone hazards have been contradictory - some find a link between cell phone use and brain tumors and some do not - and it seems prudent to me to take common sense precautions. Brain tumors can take 30 to 40 years to develop, so it could be a long time before we know for sure whether cell phone use is safe or, if not, how great the risks may be.
I recommend:

1. Using earpieces, headsets or speakerphone mode.
2. Saving long conversations for conventional phones.
3. In your car, using a cell phone that has a remote antenna located outside the vehicle.
4. Limiting the time children spend on cell phones - they may be more vulnerable than adults to adverse effects.
5. Finding out how much radiofrequency energy your cell phone emits. Called the SAR measurement (Specific Absorption Rate), 1.6 watts per kilogram is currently what is permitted in the United States. Visit the Federal Communications Commission website for more information.

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