Does radiation from the cell cause cancer?


Evidence that there is a link between cancer and cell phone radiation is now clearer, according to the National Institutes of Health, said on Thursday in the United States.

"The National Toxicology Program concluded that there is clear evidence that male rats exposed to high levels of radiofrequency radiation (RFR), as used in 2G and 3G cell phones they developed cancerous tumors of the heart"The agency said in a statement. The finding comes from research that evaluates the effect of radiofrequency radiation, which is used in mobile phones.

"There was also some evidence of brain tumors and adrenal gland in exposed male rats. For female rats and male and female mice, the evidence was misguided as to whether the cancers observed were associated with RFR exposure. "

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The report agrees with a draft which was published in February this year.

What was surprising, however, is that another federal health agency, the FDA, does not agree with this conclusion..

"After reviewing the study, we disagree with the conclusion of its final report on the clear evidence of carcinogenic activity in rodents exposed to radiofrequency energy," said Jeffrey Shuren, director of the Center for Devices and Health Radiological. of the FDA, in a statement on Thursday in response to the report.

However, the two agencies, which depend on the US Department of Health and Human Services, agrees that the findings of these studies in rats and mice should not be applied to the use of cell phones in humans.

"The exposures used in studies can not be directly compared to exposure experienced by humans when they use a cell phone," said John Bucher, senior scientist at the National Toxicology Program in the United States, in a statement. "In our studies, mice and humans received radiofrequency in all their bodies. In contrast, most people are exposed in the local fabrics near where they hold the phone.. In addition, exposure levels and duration in our studies were greater than people experienced. "

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The final report and consensus of the National Toxicology Program they are the conclusion of a research effort of 10 years and 30 million dollars.

The study included two large animal studies – one in rats and one in mice – that related high levels of cell phone radiation with some evidence of carcinogenic activity in male rats, including an unusual type of tumor called schwannoma in their hearts. There were no significant findings in female rats.

Similarly, no significant finding emerged in the study with mice, according to the report.

"One of the things we found most interesting about our findings was that the malignant schwannomas, although they occurred in the heart and not in the head of these animals, they were really schwannomas"Bucher said in February when they released the preliminary report.

The FDA stresses that cell phones emit low levels of radiofrequency energy that is non-intonating and therefore, is not considered strong enough to cause permanent damage to biological tissueincluding DNA.

The National Institutes of Health also emphasize that 5G or Wi-Fi networks were not included in the studies.

"The 5G is an emerging technology that has not really been defined yet. By what we currently understand, it appears to be totally different from what we have studied, "said Michael Wyde, the study's top toxicologist.

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Confusion and controversy

The studies of the National Toxicology Program involved about 3,000 rodents, as detailed in the draft report in February.

The animals were exposed to radiofrequency radiation levels at or above the currently permitted highest level of cell phone emissions. Researchers tracked the health of animals from the womb to two years.

A 2-year-old rat could be somehow comparable to a 70-year-old humanButcher said.

The researchers divided rodents into two groups, based on lower or higher radiofrequency radiation levels, and exposed the whole body to radiation, increasing 10 minutes at a time to reach a total of approximately nine hours per day for a period of time. two years.

"It's important to consider the magnitude of animal exposure in these studies over what you can normally get using a cell phone," Bucher said. "The lowest radiofrequency energy level we studied was similar to the highest current level allowed for cellular emissions"

Among male rats, researchers found tumors in about 6% of those in the highest-exposure groupsaid Bucher. This percentage "exceeded the average historical incidence (0.8%) and exceeded the highest rate observed in a single historical control group (2%) of the full peer-reviewed studies," the researchers wrote.

The researchers also found that the male rats in the group with the highest exposure appeared to live longer than the other rats, but more research is needed to determine why and how this may be relevant to the study results.

"Studies in animals like this contribute to our discussion on this subject, but we must remember that the study was not designed to test the safety of cell phones in humans, so we can not draw conclusions about the risks of cell phones while using them, "Shuren said.

"Based on our ongoing assessment on this subject, all available scientific evidence remains unsupported by the adverse health effects in humans caused by exposures below or within the current limits of exposure to energy. We believe that the existing security limits for mobile phones are still acceptable for the protection of public health ".


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