Mobile phone: increased risk of brain tumor

Cell phone use for 10 years doubles the risk of brain tumors.


Mobile phone: increased risk of brain tumor.

The analysis conducted by Dr. Lennart Hardell, professor of oncology at Örebro University in Sweden, and Michel Carlberg, statistician at the same university, is quite conclusive on the risks associated with ‘cell phone use. They studied data from two previous case-control studies on Swedish patients with malignant brain tumors, during the periods 1997-2003 and 2007-2009.


The patients were between 18 and 80 years old when their tumor was diagnosed. Cell phone use was verified through questionnaires (use of a hands-free device not counted as exposure). In all, the study involved nearly 1,500 patients with brain cancer, and 3,530 controls without cancer.



The risk of developing glioma increases with the frequency of cell phone use.

Using analysis adjusted for gender, age, year of diagnosis, and socioeconomic index, they determined that the risks of developing glioma - a malignant and highly lethal brain tumor - increased in line with the increase in cell phone use. Statistically, the more hours they spent with a cell phone pressed to their ear, the more years they had spent using a cell phone, the greater the risk.


Those who spent the most hours with their cell phones to their ears were twice as likely to develop glioma as those who spent less time on the phone.


Those who had used a cell phone or cordless phone for over 25 years were three times more likely to develop glioma than those who had used them for less than a year.


Cell phone use for 10 years doubles the risk of brain tumors.

A review of 11 long-term epidemiological studies, previously published in the journal Surgical Neurology, had previously found that using a cell phone for 10 years or more approximately doubles the risk of developing a brain tumor, on the side of your head where you usually hold your phone. Both Dr. Hardell and Carlberg also participated in this study, and these findings are very similar to the findings of their most recent review, discussed above.


Finally, another study published in JAMA has shown, using a special brain scanner capable of detecting alterations in glucose, that cell phone radiation causes brain cells to metabolize glucose faster. Glucose metabolism is the activation of cells, so the findings indicate that radiation from your cell phone has a definite, measurable influence on your brain.


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