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Can Cell Phones Cause Cancer

The use of cell phones has increased very rapidly in the past few years. Today, cell phones are found in most parts of the world, even in remote areas of developing countries. Cell phones generate radio frequency (RF) signals in a range between 800 and 2000 MHz, i.e. in the microwave range of the electromagnetic spectrum. RF radiation at sufficiently high levels can generate heat by inducing small electric currents in biological tissue. A typical cell phone operates with a power output that could only cause, at a maximum, a rise 0.18C.

This amount does not have any significant biological effect. Additionally, RF does not possess sufficient energy to remove electrons from atoms or molecules and thus does not produce ionizing radiation, which causes damage to DNA.

Cell Phones Cause Cancer

Due of the weak thermal and ionizing nature of RF emitted by cell phones, it is unlikely that this RF would cause cancer. However some studies conducted in rodents have suggested some associated risk between RF in the potential range of a cell phones MHz and tumors, a range that could damage DNA.

A number of human epidemiological and occupational exposure studies do not support any association of cell phone risk and cancer. A study of 250,000 cell phone users in the United States did not show any increased cancer risk, and a case control study from Sweden indicated no increase in brain tumors.

In a study of 195,775 workers engaged in manufacturing and testing of cell phones, no association between RF exposure and brain, other nervous system cancers, or leukemia was found. A nationwide cohort study involving 420,000 cell phone users in Denmark found no association between cell phone use and tumors of the brain or salivary glands, leukemia, or other cancers.

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