a reply to: theNLBS
American Cancer Society
"A recent study showed that when people used a cell phone for 50 minutes, brain tissues on the same side of the head as the phone’s antenna
metabolized more glucose than did tissues on the opposite side of the brain (2). The researchers noted that the results are preliminary, and possible
health outcomes from this increase in glucose metabolism are still unknown.
(2) Volkow ND, Tomasi D, Wang GJ, et al. Effects of cell phone radiofrequency signal exposure on brain glucose metabolism. JAMA 2011;
Centers for Disease Control and Prevention
"Do cell phones give off (emit) radiation?
Yes – cell phones and cordless phones use radiofrequency radiation (RF) to send signals. RF is different from other types of radiation (like x-rays)
that we know can be harmful. We don’t know for sure if RF radiation from cell phones can cause health problems years later. The International Agency
for Research on Cancer (IARC) has classified RF radiation as a “possible human carcinogen.” (A carcinogen is an agent that causes cancer.)"
World Health Organization
"...However, because many cancers are not detectable until many years after the interactions that led to the tumour, and since mobile phones were not
widely used until the early 1990s, epidemiological studies at present can only assess those cancers that become evident within shorter time periods.
However, results of animal studies consistently show no increased cancer risk for long-term exposure to radiofrequency fields..."
"...There are some indications of an increased risk of glioma for those who reported the highest 10% of cumulative hours of cell phone use, although
there was no consistent trend of increasing risk with greater duration of use. The researchers concluded that biases and errors limit the strength of
these conclusions and prevent a causal interpretation."
"Based largely on these data, IARC has classified radiofrequency electromagnetic fields as possibly carcinogenic to humans (Group 2B), a category
used when a causal association is considered credible, but when chance, bias or confounding cannot be ruled out with reasonable confidence."
"While an increased risk of brain tumors is not established, the increasing use of mobile phones and the lack of data for mobile phone use over time
periods longer than 15 years warrant further research of mobile phone use and brain cancer risk. In particular, with the recent popularity of mobile
phone use among younger people, and therefore a potentially longer lifetime of exposure, WHO has promoted further research on this group. Several
studies investigating potential health effects in children and adolescents are underway."