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Author Topic:   Mobile phone radiation wrecks your sleep
venusdeindia
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Posts: 998
From: mumbai,india
Registered: Nov 2006

posted April 17, 2008 02:24 AM     Click Here to See the Profile for venusdeindia     Edit/Delete Message
By Geoffrey Lean, Environment Editor

Published: 20 January 2008

Radiation from mobile phones delays and reduces sleep, and causes headaches and confusion, according to a new study.

The research, sponsored by the mobile phone companies themselves, shows that using the handsets before bed causes people to take longer to reach the deeper stages of sleep and to spend less time in them, interfering with the body's ability to repair damage suffered during the day.

The findings are especially alarming for children and teenagers, most of whom – surveys suggest – use their phones late at night and who especially need sleep. Their failure to get enough can lead to mood and personality changes, ADHD-like symptoms, depression, lack of concentration and poor academic performance.

The study – carried out by scientists from the blue-chip Karolinska Institute and Uppsala University in Sweden and from Wayne State University in Michigan, USA – is thought to be the most comprehensive of its kind.

Published by the Massachusetts Institute of Technology's Progress in Electromagnetics Research Symposium and funded by the Mobile Manufacturers Forum, representing the main handset companies, it has caused serious concern among top sleep experts, one of whom said that there was now "more than sufficient evidence" to show that the radiation "affects deep sleep".

The scientists studied 35 men and 36 women aged between 18 and 45. Some were exposed to radiation that exactly mimicked what is received when using mobile phones; others were placed in precisely the same conditions, but given only "sham" exposure, receiving no radiation at all.

The people who had received the radiation took longer to enter the first of the deeper stages of sleep, and spent less time in the deepest one. The scientists concluded: "The study indicates that during laboratory exposure to 884 MHz wireless signals components of sleep believed to be important for recovery from daily wear and tear are adversely affected."

The embarrassed Mobile Manufacturers Forum played down the results, insisting – at apparent variance with this published conclusion – that its "results were inconclusive" and that "the researchers did not claim that exposure caused sleep disturbance".

But Professor Bengt Arnetz, who led the study, says: "We did find an effect from mobile phones from exposure scenarios that were realistic. This suggests that they have measurable effects on the brain."

He believes that the radiation may activate the brain's stress system, "making people more alert and more focused, and decreasing their ability to wind down and fall asleep".

About half of the people studied believed themselves to be "electrosensitive", reporting symptoms such as headaches and impaired cognitive function from mobile phone use. But they proved to be unable to tell if they had been exposed to the radiation in the test.

This strengthens the conclusion of the study, as it disposes of any suggestion that knowledge of exposure influenced sleeping patterns. Even more significantly, it throws into doubt the relevance of studies the industry relies on to maintain that the radiation has no measurable effects.

A series of them – most notably a recent highly publicised study at Essex University – have similarly found that people claiming to be electrosensitive could not distinguish when the radiation was turned on in laboratory conditions, suggesting that they were not affected.

Critics have attacked the studies' methodology, but the new findings deal them a serious blow. For they show that the radiation did have an effect, even though people could not tell when they were exposed.

It also complements other recent research. A massive study, following 1,656 Belgian teenagers for a year, found most of them used their phones after going to bed. It concluded that those who did this once a week were more than three times – and those who used them more often more than five times – as likely to be "very tired".

Dr Chris Idzikowski, the director of the Edinburgh Sleep Centre, says: "There is now more than sufficient evidence, from a large number of reputable investigators who are finding that mobile phone exposure an hour before sleep adversely affects deep sleep."

Dr William Kohler of the Florida Sleep Institute added: "Anything that disrupts the integrity of your sleep will potentially have adverse consequences in functioning during the day, such as grouchiness, difficulty concentrating, and in children hyperactivity and behaviour problems."

David Schick, the chief executive of Exradia, which manufactures protective devices against the radiation, called on ministers to conduct "a formal public inquiry" into the effects of mobile phones.
http://news.independent.co.uk/sci_tech/article3353768.ece

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CancerianMoon
Knowflake

Posts: 1085
From: Sydney, Australia. Cancer Sun.....Gemini Moon.....Aqua Rising
Registered: Aug 2003

posted April 20, 2008 06:17 PM     Click Here to See the Profile for CancerianMoon     Edit/Delete Message
I personally find this very concerning... i know when i talk for longer than a few mins on my cordless home phone or my mobile phone i either get a pain in my ears or start to get a headache... i dont talk much on my mobile...but when i do i try to always use the speaker..heres some info ive read recently..


Cell Phones and Brain Tumors


Scientists have found the first evidence linking brain cancer with mobile phone use.

It was found that users who spend more than an hour a day talking on a mobile phone have a close to one-third higher risk of developing a rare form of brain tumor. Most frequently, the cancers were found on the side of the head that the user held the phone up to.

The association was found with digital mobile phones, old-style analogue mobile phones and digital enhanced cordless phones.

Although radiation from mobile phones has been shown to alter the brain and affect memory, past studies have found no evidence of a link between brain cancer and mobile phone use.

In the current study, researchers looked at the medical records of 1,600 patients with tumors who had used mobile phones for up to 10 years before diagnosis. They found that the more mobile phones were used, and the more years they were used, the higher the risk of brain tumors.

Further, spending more than an hour on a mobile phone per day increased the risk of acoustic neuroma, a type of tumor, by some 30 percent. This type of tumor, usually curable by surgery, can occur in a nerve in the brain and lead to deafness in one ear.

Incidences of this type of cancer, though rare, have increased from one tumor per 100,000 people in 1980 to one per 80,000 today.

Researchers say that the findings appear to show a link, but further studies are needed to confirm the results

As Moore's Law (the doubling of computer technology every 18 months) continues to reduce the cost of wireless communication, cell phones will become increasingly popular. Many people are even abandoning their land-based phones to use their cell phones as their exclusive phone service.

The issue of electromagnetic field (EMF) radiation from cell phones is controversial and most experts believe that it is insignificant. However, there is a significant body of evidence to suggest that cell phone radiation can indeed cause health problems.

The central issue is that most experts are basing their conclusions of a non-damaging health effect on information derived from examining thermal or heat related effects. It is highly unlikely that the damage cell phones do is through this mechanism.

The experts fail to consider the negative biological effects of exposure to long-term low intensity pulsed microwave radiation that these phones emit. Our bodies, especially our brains, are extraordinarily sensitive receptors of EMF radiation.

If you use a cell phone at all, I would strongly encourage you to carefully review the Lancet article that I posted in the newsletter two years ago.

However, while I once discouraged the use of cell phones because of EMF concerns, new technological innovations have all but eliminated these concerns.

One such innovation is Bluetooth wireless technology. Essentially, this is a completely wireless headset that enables you to place the cell phone up to 30 feet away from your body while making calls. This is more than sufficient distance to minimize the potential dangers from EMF.

Aside from the wireless headset, cell phone dangers can be minimized by using a wired headset and keeping the phone away from your body while it is in standby mode--keep the phone in a purse or holster on your belt instead of in a pocket.

http://articles.mercola.com/sites/articles/archive/2003/04/02/cell-phones-part-nine.aspx


Preadolescent children can be expected to be more vulnerable to any adverse health effects than adults because absorption of GSM microwaves is greatest in an object about the size of a child's head, because of the "head resonance" effect and the greater ease with which the radiation can penetrate the thinner skull of an infant.

Also the multiframe repetition frequency of 834 Hz and the 2 Hz pulsing in the DTX mode of cellphones lie in the range of the alpha and delta brain-waves, respectively.

In a child, alpha waves do not replace delta waves as a stable activity until the age of about 12 years. Furthermore, the immune system, whose efficacy is degraded by this kind of radiation, is less robust in children.

This makes them less able to cope with any adverse health effect that might be provoked by chronic exposure, not only to the pulsed microwave radiation but also to the the more penetrating low-frequency magnetic fields associated with the current surges from the handset battery which can reach 40 µT (peak) near the back of the case.


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