Roughly 270 million Americans do it several times a day: talk on a cell phone. Seems harmless. But when you make and re­ceive calls, your cell phone emits low levels of radio-frequency radiation — a fact that has fueled heated and ongoing scientific debate on the health risks of mobile-phone use.
On Sept. 9, the Environmental Working Group (EWG), a public-health advocacy, released a lengthy review of past research linking long-term or frequent cell-phone use with increased rates of brain tumors, migraines and kids' behavioral problems. For their part, the phone industry and the Federal Government say cell phones are safe. The "majority of studies published have failed to show an association between exposure to radio-frequency from a cell phone and health problems," states the U.S. Food and Drug Administration on its website. But concerns are high enough that the Senate on Sept. 14 held hearings — led by Democratic Senator Arlen Specter of Pennsylvania, a brain-cancer survivor — to examine the subject. The outcome: inconclusive.

Despite the government's view that cell phones pose no danger, some researchers note that most of us have been using them for less than a decade. If there is indeed a cumulative risk to using a mobile phone, it's possible that users won't be aware of it until it's too late — just as it took doctors decades to connect cigarette-smoking with lung cancer.

Better, long-term research is needed — and it can't come from the cell-phone industry.For now, you can use a Bluetooth or wired headset or simply talk on your cell phone less to reduce the amount of radiation that bombards your skull. You can also choose a low-radiation cell phone; the EWG has created a searchable online database that ranks the radiation levels of more than 1,200 models. And finally, take a cue from the nearest teenager: texting is safer than talking.

Not only the cell-phone radiation but also the computers risk are in danger. Especially for kids and pregnant women,all of us should take acctions to protect them.

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We must always be on the alert for possible harmful influences, but the mere fact that a billion people worldwide use cellphones regularly and all surveys are at worst inconclusive tells us that even if there is a harmful effect, it must be rather small. Otherwise, it should have shown up by now. However, as noted, long-term effects are still possible.

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it's possible that users won't be aware of it until it's too late — just as it took doctors decades to connect cigarette-smoking with lung cancer.

Those cannot quite be compared. First off, for many decades, we did not have the statistical tools to discover the ill effects of smoking. Secondly, that danger has been realized for half a century, it is just that effective lobbying from the tobacco industry, and general denial from an addicted populace, meant that the knowledge was largely ignored.

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Better, long-term research is needed — and it can't come from the cell-phone industry.

Well, at least it needs to be strictly supervised by the authorities.

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For now, you can use a Bluetooth or wired headset or simply talk on your cell phone less to reduce the amount of radiation that bombards your skull. You can also choose a low-radiation cell phone; the EWG has created a searchable online database that ranks the radiation levels of more than 1,200 models.

Except for some quite old models, the radiation from different models is in the same general magnitude. For possible long-term health effects, whether it emits 1/4W or 1W is of minor importance.

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And finally, take a cue from the nearest teenager: texting is safer than talking.

For your head, yes. But what about the rest of your body?

Hans

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The radiation from computers is an entirely different type. The most suspect radiation is from CRT monitors; as these get replaced by flat screens, the radiation from computers will not be any different than that from various other electrical appliances.

Hans

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