Are cell phones the modern day equivalent of Rome's lead goblets (which did brain damage)?
Here's a study that shows damage to rat brains after one single cell phone call. Pay particular attention to the photos--they are ghastly.
Also, the study recommends using a headset (costs ) if you have to use a cell phone. Simply plug the headset in and place the cell phone away from yourself. The microwave radiation that cooks brain cells diminishes logarithmically with distance. http://www.protectingourhealth.org/newscience/learning/2003/2003-0129salfordetal.htm