Have people just forgotten that even the old cell phones caused brain tumors? Do you think all the new wireless networks are going to reduce that chance in the new phones?
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Well, it's hard to forget something that doesn't actually exist.
It was never proven that cell phones caused cancer. It is true that there were a couple of studies that we can now call outliers showing minor levels of increases statistically--which is an association, but not the same thing as causal proof if you're familiar with the way these studies work. Statistical associations do not constitute proof--and they can also occur because of flaws in the way the study was conducted. That happens a lot. A mere association is often meaningless. For instance, to take an easy example, 100% of the people who smoke pot have breathed oxygen. Therefore, air causes pot smoking. Well, no. A lot of the statistical associations are also so small as to be caused just by chance aberrations in a group. So, they must be able to be replicated repeatedly and reliably before they can be accepted as ominous and a standard.
Instead, the vast majority of studies have found exactly the opposite. Absolutely none of those studies that initially raised alarms has been accepted as an actual answer by the scientific community overall, and they have been rebutted and deemed flawed. The vast majority of studies, in fact, have concluded: no link shown, no proof whatsoever.
The National Cancer Institute says:
"Although there have been some concerns that radiofrequency energy from cell phones held closely to the head may affect the brain and other tissues, to date there is no evidence from studies of cells, animals, or humans that radiofrequency energy can cause cancer....
"NCI's Surveillance, Epidemiology, and End Results (SEER) Program, which tracks cancer incidence in the United States over time, found no increase in the incidence of brain or other central nervous system cancers between 1987 and 2007, despite the dramatic increase in cell phone use in this country during that time .....
"Studies of workers exposed to radiofrequency energy have shown no evidence of increased risk of brain tumors among U.S. Navy electronics technicians, aviation technicians, or fire control technicians, those working in an electromagnetic pulse test program, plastic-ware workers, cellular phone manufacturing workers, or Navy personnel with a high probability of exposure to radar.
...
"The U.S. Food and Drug Administration (FDA), which is responsible for regulating the safety of machines and devices that emit radiation (including cell phones), notes that studies reporting biological changes associated with radiofrequency energy have failed to be replicated and that the majority of human epidemiologic studies have failed to show a relationship between exposure to radiofrequency energy from cell phones and health problems.
...
"The U.S. Centers for Disease Control and Prevention (CDC) states that, although some studies have raised concerns about the possible risks of cell phone use, scientific research as a whole does not support a statistically significant association between cell phone use and health effects.
The Federal Communications Commission (FCC) concludes that there is no scientific evidence that proves that wireless phone use can lead to cancer or to other health problems, including headaches, dizziness, or memory loss."
There is a holdout group that insists something "might be amiss!" That line of thought is described in a good Forbes recent article, which also describes how the scientific community has been bullied to some extent by people insisting that it's true; here, if you care to go through it:
Do Cell Phones Cause Brain Cancer? The Diehards Cling Desperately To Opinion - Forbes
The overall conclusion at the moment is that there is no evidence to support the theory that cell phones cause brain cancer and there is no study so stating that is deemed appropriately done and accepted as proof overall, whereas there are a lot on the other side of the issue.
But since the gist of your post was actually that there was no point to worrying about it, I am pleased to contribute another reason not to worry about it!
