A UN agency has called the RF fields from cellphones "possibly carcinogenic to humans," but wireless industry trade group CTIA said the agency didn't conduct any new research and simply reviewed previous studies.
Based on the previous studies, the Federal Communications Commission has concluded that "[t]here's no scientific evidence that proves that wireless phone usage can lead to cancer," CTIA said in quoting an FCC report. CTIA also quoted the Food and Drug Administration as stating, "[t]he weight of scientific evidence has not linked cell phones with any health problems."
The U.N.'s International Agency for Research on Cancer (IARC) working group, in reviewing peer-reviewed studies, found some evidence of an increase in glioma and acoustic neuroma brain cancers among mobile phone users.
The working group said it "did not quantitate the risk," though one study reviewed by the IARC found a 40 percent increased risk in glioma cancer among the heaviest users who talked on cellphones for 30 minutes per day over a 10-year period.