Cell phones and brain cancer have been in the news again with a report in the International Journal of Epidemiology. Overall, the study found no increased risk of brain cancers except perhaps in the group of study participants who reported the highest levels of cell phone usage — a group with a ridiculously high number of hours of use.
Even in this group, the increased risk was small, less than a two-fold increase. Considering the rarity of brain cancer in the first place, even a doubling of risk would represent a tiny overall risk. I strongly suspect that the risk of cell phones causing auto accidents is a far, far greater risk and concern than any potential risk of increased brain cancers.
Based on this article, I’m not changing my cell phone habits: “Brain tumor risk in relation to mobile telephone use: results of the INTERPHONE international case-control study.” The INTERPHONE Study Group. International Journal of Epidemiology, 2010;1-20.