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Electric Shavers Rot Your Brain

Damek writes "According to UW researchers, prolonged exposure to low-level magnetic fields, similar to those emitted by such common household devices as blow dryers, electric blankets and razors, can damage brain cell DNA. The damage appears to be cumulative, so you'd best get rid of your electric razors & blankets ASAP! The full study is available online now. No word yet for Cell Phone users' brains..."

6 of 709 comments (clear)

  1. My Mom was right... by chazman00 · · Score: 5, Insightful

    ..when she told me not to sit to close to the TV

  2. Re:Minor nit to pick... by krilli · · Score: 5, Insightful

    I think the key words are "a marked increase".

    Apoptosis is a system that terminates cells that are in risk of becoming cancer cells. A marked increase of cells that are activating this system does not bode good, IMO.

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  3. ugh. by Niet3sche · · Score: 5, Insightful
    Someone's gotta put this into perspective:

    These are rats exposed to 60Hz AC EMF at 0.1 to 0.5mT for two hours (continuous). Also studied were rats exposed to 60Hz AC EMF at 0.1mT for 24 hours (continuous).

    So I suppose, as an analog ....

    Go lie down in an MRI for a couple days straight. If you don't go deaf from the noise (they're loud), then you might see similar results. Oh, and don't wear deodorant ... it contains aluminium which will cause it to be dragged through your arm... ouch.

    Not that I'm saying there may well be something in this ... but how many of us even use the shaver/hairdryer for 2 continuous hours in a sitting? It may well be (and is likely) that the effects are not cumulative, but are actually acute trauma scenarios. For instance, you can assert that dropping a grain of dust on your foot 5 times a day for 10 years would make for the same mass as, say, dropping a car on said foot. However, the problem then comes in saying, "therefore, the two are analogous - we will see the same damage from the dust as we would with the car".

    It just does not follow.

  4. Re:Umm... by tessaiga · · Score: 5, Insightful
    Wouldn't this only be a problem if you use these devices every day directly in contact with your skull?
    Both my blow drier and my razor actually come pretty close to my skull when I use them :)

    I agree that the news release seems pretty sensationalized, though. If you read carefully, you'll note that in the study they subjected the rats to a 60Hz field for 24 hours continuously, not a few minutes at a time:

    In the study, the researchers discovered that rats exposed to a 60-hertz field for 24 hours showed significant DNA damage, and rats exposed for 48 hours showed even more breaks in brain cell DNA strands.
    I don't consider this enough evidence to support their conclusion that the damage is cumulative, since to prove that they'd need to expose the rates to 24 hours of radiation a few minutes at a time, with long breaks in between, in a manner that would more closely mimic the use of the electronic devices they refer to.

    A loose analogy would be that I can hold my breath for ten seconds 30 times over the course of a day without any danger, but if I tried to do it all at once the results would probably be pretty harmful.

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  5. Re:Here is what Robert Park at the APS says by nlh · · Score: 5, Insightful

    In fact, he devotes a whole chapter in the aforementioned book regarding the complete lack of evidence regarding EMF as a health risk.

    Right. But, um, wouldn't this study - by definition - be evidence regarding EMF as a health risk?

    nlh

  6. This is mostly bunk - think about MRI's by Anonymous Coward · · Score: 5, Insightful

    First off, I'm an RF Engineer. 2nd, I know an RF Engineer who specializes in RF and EM biohazzard. Don't just take my word on it concerning the following information - please go ahead and double check it with what information you can find.

    This supposed damage from low-level EM fields has been a concern and a wife's tale for quite some time. Cellphones that are close to people's heads and electric blankets have often been the center of the discussions.

    But think about the MRI machines, where there are absolutely huge magnetic fields concentrated around someone's skull, where the brain tissue is housed. Does getting an MRI cause huge amounts of brain damage? Don't you think we would have found such correlations prior to now if there were some?

    I've heard stories of people coming out of MRI machines "seeing stars" briefly - that would make some sense because the brain works via electromagnetic impulses, which are effected by strong magnetic fields. I haven't heard of permanent damage resulting from exposure.

    Hair dryers and personal Shavers? Come on. No.
    Electric blankets are a bit more diffult to dismiss, since they do create an EM field covering a person's body, and at 60 Hz. Cellphones far from cell stations transmit more power, and right next to a person's head.

    However: the only thing that has been shown to conclusively disrupt DNA is ionizing radiation such as that of radioactive materials or ultraviolet light. (As can be shown of instances of skin cancer in the case of UV, and cancer from radiation - even though it's also used as a treatment for cancer - for the very same reasons). Those are things to be concerned about.

    RF energy such as that in cellphones has been found to be safe except for the heating created by the RF energy, the very principles behind the microwave oven. [Which concentrates 1,000 watts into a metal cage with a small amount of food in it - a very different scenario than a very low power cellphone next to a quite large meaty object in open air.]

    There are areas where people work where CRT monitors do not function due to the magnetic fields in the vicinity. I.E. we're talking more than 1 gauss [yes, 1,000 mili gauss] of magnetic field. Hint: THEY LIVE, and they're working in that environment every day. [Think about broadcasting stations, or power stations, etc, etc.]

    This will eventually be shown to be mostly bunk.