Tuesday, February 22, 2011

Cellphone radiation heightens brain activity

The electromagnetic radiation emitted by a cellular phone's antenna appears to activate nearby regions of the brain to unusually high levels, according to a study published Tuesday in the Journal of the American Medical Assn. that is likely to spark new concerns about the health effects of wireless devices.

The preliminary study, led by a respected neuroscientist at the National Institutes of Health, raises many more questions than it answers. But by providing solid evidence that cellphone use has measurable effects on brain activity, it suggests that the nation's passionate attachment to its 300 million cellphones may be altering the way we think and behave in subtle ways.

Researchers peered inside the brains of 47 healthy subjects using positron emission tomography, also known as PET scanning, to measure the location and timing of brain activity by detecting signs that cells were consuming energy. They found that despite official skepticism that cellphones' electromagnetic energy exerts any influence on nearby cells — including statements issued by the Food and Drug Administration — it clearly does. ...

The study found that two areas of the brain close to the phone's antenna, which was embedded in the mouthpiece of the phone used, showed unusual increases in activity throughout a 50-minute period of live transmission. The researchers speculated that a cellphone with its antenna placed elsewhere — near the phone's earpiece, for instance — might activate different regions in the brain.

That the heightened activity occurred closest to the antenna, and not near the place where the phone was in direct contact with the head, signaled to the study's authors that the changes were a response to electromagnetic signals and not a reaction to the heat generated by the device. The FDA has taken the position that any harmful effects of cellphones are the result of tissue becoming overheated by direct exposure to the device as it warms with prolonged use. ...

via Cellphone study: Cellphone radiation heightens brain activity, study finds - latimes.com.

The above study did not find an increased risk of cancer, and claims "a growing body of research has failed to find evidence to support" the claim that cell phones cause cancer. Is this just because cell phone companies are paying for studies that fail to find cancer? Others say there is growing evidence in the other direction.
... There are even more radical voices in the field supporting the theory that mobile phones are more dangerous than smoking. Brain experts warn about the rising percent in tumors, calling on the industry to take urgent measures in reducing radiation. An Indian award-winning cancer expert claims that cell phones could kill more people than smoking or asbestos.  ... using handsets for ten years or more can double the risk of developing brain cancer, as cancers take at least a decade to grow, invalidating official safety assurances based on some previous studies that apparently used irrelevant sampling procedures  ....

via w-cellphones



Mirlen101 said...

The cell towers might be more likely to cause damage . Studies on exposure to electromagnetism generally find one thing . It is not the constant exposure that gets you . It is the going in and out of the electromagnetic field .
There have been recent studies that have proven electromagnetic frequencies can alter brain patterns . They found that certain frequencies cause a stimulation of brain cell activity by proximity and other frequencies create a suppression of brain activity , outside of those frequencies, no effect on the mind .But cell phones have very low power ! Any effect is so low it seems ridiculous to think of any measurable effect ! If there were we would have been more effected by Microwaves , radio waves and power lines etc. ! Things that have similar frequencies on much much higher levels ! Cell phones aren't magically endowed with higher powers ! They are one of the lowest in power . Change is directly related to amount of energy ! You can't push an elephant with a flea ! If I were to take an educated guess I would say that people who are frequently on the phone are probably getting less intelligent ! Most people conversations are about as interesting as their twitters or Facebook banter ! Ya not so much ! ;-/

Mirlen101 said...

And they didn't change antenna location to see if that changed to result , stupid mistake !