(Geoffrey Kabat, Forbes | OPINION) Little is known about the causes of brain cancer and brain tumors.
Exposure to ionizing radiation (X-rays) and certain rare genetic syndromes have been identified as causes, but these account for only a small proportion of cases.
Cell phone use may double or triple brain cancer risk
Since the early 1990s the possibility that exposure to radio frequency (RF) radiation from wireless communications devices may be causing an increase in brain cancer has become a public concern.
This possibility was given credence in 2011 when the International Agency for Research on Cancer (IARC), an arm of the World Health Organization, classified cell phone RF energy as a “possible carcinogen.”
In addition, a research group in Sweden has been publicizing results that appear to indicate that long-term cell phone use is associated with a 2-3-fold increased risk of brain cancer.
These results contrast with the vast majority of epidemiological studies, which show little evidence of an association. However, the frightening results from this single group tend to get much more attention than the much larger body of studies which show no association.
In this situation, a crucial question is: Has the incidence of brain cancers – and of specific types – been increasing over recent decades – as the use of cell phones has surged? This would appear to be a simple question, but, as I explain below, it is anything but.
In response to a column I wrote regarding the California Department of Public Health’s recent advisory on cell phone safety, I received a number of letters/tweets asserting that the incidence of brain cancer, and particularly of glioma and glioblastoma – the most deadly type – has been increasing in Denmark, Sweden, the Netherlands, UK, USA, and Australia.
Read the full story at FORBES. Also of interest: ‘Mad Scientists’ Implant Human Brain Tissue Into Lab Rats