"which is why I prefer to go with science, and the science says its impossible for cell phone signals to harm you. "
I attempt to use scientific thought all the time - which is to say I continually seek the truth. I ignore opinion (popular or otherwise). 
In terms of your statement above science has said no such thing - in fact it has said exactly the opposite. You need to question the basis of this statement as this is where so many misunderstanding on this topic stem from.
Science has shown exactly the opposite - I am interested to know why you believe that science has shown it is impossible for cell phone signals to harm you.