Saturday, 22 September, 2018

New study shows mixed results in linking cellphone radiation to cancer

New study shows mixed results in linking cellphone radiation to cancer New study shows mixed results in linking cellphone radiation to cancer
Becky Salazar | 06 February, 2018, 15:25

In the studies, which lasted 2 years, rats and mice of both sexes ran freely in specially constructed reverberation chambers where their entire bodies were exposed to radiation. "We note, however, that the tumors we saw in these studies are similar to tumors previously reported in some studies of frequent cell phone users". Most groups were exposed to nine hours of radio waves per day for two years.

The concern with this type of radiation is that it produces energy in the form of heat, and frequent exposure against the skin could alter brain cell activity, as some studies have suggested.

Data from the largest-ever animal study of cellphone radiation effects, released today by the federal National Toxicology Program, confirms earlier evidence from human studies that cellphone radiation increases the risk of cancer. While the United States has transitioned to 4G, 4G-LTE and 5G networks in recent years, the 2G and 3G frequencies are still used in voice calls and texting. But they also lived longer. Female rats exposed to the radiation didn't, and neither male nor female mice showed obvious health problems in a second study.

"We understand that the NTP draft reports for its mice and rat studies will be put out for comment and peer review so that their significance can be assessed", the group said.

"This is the most authoritative study published that connects cancer with cellphone radiation - it should raise alarms for policymakers and awareness for all Americans", said Olga Naidenko, Ph.D., senior science advisor at EWG. The amount of radiation to which the laboratory animals were exposed included the levels emitted by cellphones millions of people use everyday. Because the rodents were exposed to radiation levels we would not typically experience, John Bucher, the lead author behind the research, said that the findings have not caused him to personally change how he uses his cellphone.

"We don't have any idea really", Bucher said.

In a statement, the U.S. National Cancer Institute noted that "often, when concerns are raised about exposures that may confer low-level risk for a rare cancer outcome-as is the case for cellphones and brain tumors-it takes time and many studies to come to a conclusion based on the weight of the evidence". Interestingly, the babies developed to be normal sized and did not show any other developmental defects.

Jeffrey Shuren, director of the FDA's Center for Devices and Radiological Health, said in a statement that the agency's preliminary understanding of the results "is that the study found mostly equivocal, or ambiguous, evidence that whole body radio-frequency energy exposures given to rats or mice in the study actually caused cancer in these animals". "The evidence for an association between cell phones and cancer is weak".

Most scientists aren't swayed either way by these studies.

There's an ongoing debate about whether cellphones can give you cancer - especially brain cancer, since our phones spend so much time near our faces. The new studies, when combined with previous research, have "given us the confidence that the current safety limits for cellphone radiation remain acceptable for protecting the public health".

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