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Research Finds Effects of GSM Signals on Sleep

An anonymous reader writes "The effects of mobile phone radiation on sleep were studied in Sweden in a laboratory experiment where subjects were exposed either to 884 MHz GSM radiation or placebo. The study finds that compared to placebo, in the radiation-exposed subjects there was a prolonged latency to reach the first cycle of deep sleep (stage 3). The amount of stage 4 sleep was also decreased. Moreover, participants that otherwise have no self-reported symptoms related to mobile phone use, appear to have more headaches during actual radiofrequency exposure as compared to sham exposure."

5 of 319 comments (clear)

  1. Re:Already knew this... by torkus · · Score: 5, Informative

    Actually you're "missing" background noise that you're otherwise used to hearing and don't notice.

    For example, I live fairly close to a major highway and have for nearly the past 10 years. In the middle of that I spent a couple months living with my parents who are a mile or two from a highway that's not quite as busy (we're still in lower NY so "busy" is relative). The first morning I got up and tip-toed to the bathroom because it was SOOO quiet there.

    My point: You were "missing" the noise of a zillion cars, airplanes, garbage trucks, air conditioners, trains, computer fans and hard drives, and what have you. The brain gets used to it and if that noise disappears you feel like something is missing or wrong. I highly doubt this has anything to do with RF waves in your case.

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  2. RTFA by nguy · · Score: 5, Informative

    These are just a few of the questions that pop up in any thorough analysis of this experiment.

    A "thorough analysis" of an experiment begins with actually reading the paper!

    The original paper is linked to at the top of the page, in PDF format. You'll find your questions answered there. Basically, the study is carefully controlled.

    If you have some ideological dislike of the results (as you seem to), perhaps you should try to repeat the experiment yourself and present your results. See, reproducing experimental result is another cornerstone of science.

  3. An average of 1.4 W/kg by Jimmy_B · · Score: 5, Informative

    In the abstract, it mentions that they were exposed to an average of 1.4 W/kg. That's several orders of magnitude more powerful than anything you'd encounter outside the laboratory, which is less than 1W total. Unless you have a kilowatt tower on your nightstand, you have nothing to worry about.

  4. Info on SAR (Watts/kg) by Orgasmatron · · Score: 5, Informative

    Wikipedia

    FCC Page

    1.4 W/kg is close to the FCC limit of 1.6 W/kg. The EU limit is 2.0 W/kg.

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  5. Re:RF placebo? by Smallpond · · Score: 4, Informative

    It was double-blind. According to the full article, the change in sleep onset went from 0.27 hours (sham) to 0.37 hours (actual RF). And the duration dropped from 45.5 minutes (sham) to 37.2 minutes (actual RF). No idea why they changed units, but I was always taught to ignore effects smaller than 2:1 in small sample sizes. Most likely a candidate for the JIR.