For the last couple of weeks, there has been a great amount of discussion about the possible risk that cell phone radiation can cause brain tumors since the head of a prominent cancer center released a letter to the faculty recommending that everyone limit their use of cell phones, especially children (Here is a link to the ABC news coverage on the story). He recommends that children not use them at all (except for emergencies) and that adults should reduce exposure levels as much as possible (limited use or always use Bluetooth devices). He says there is no data that proves there is a risk but since we are not sure, we should be safe. He is basing his alarm on unpublished data which will take too long to make public.

There have been many studies and no link has been found. The FCC does limit the radiation levels of cell phones to a maximum specific absorption rate (SAR) of 1.6 W/kg (European limits are 2.0 W/kg). You can find the measured SAR values for many cell phones on CNET's website.

What do you think? Are cell phones really dangerous to our health?? Let's hear from some technical experts about the subject!