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Science

Mobile Phones Not Linked To Brain Cancer, Biggest Study To Date Finds (theguardian.com) 83

Mobile phones are not linked to brain and head cancers, a comprehensive review of the highest quality evidence available commissioned by the World Health Organization has found. From a report: Led by the Australian Radiation Protection and Nuclear Safety Agency (Arpansa), the systematic review examined more than 5,000 studies from which the most scientifically rigorous were identified and weak studies were excluded. The final analysis included 63 observational studies in humans published between 1994 and 2022, making it "the most comprehensive review to date," the review lead author, associate prof Ken Karipidis, said. "We concluded the evidence does not show a link between mobile phones and brain cancer or other head and neck cancers."

Published on Wednesday, the review focused on cancers of the central nervous system (including brain, meninges, pituitary gland and ear), salivary gland tumours and brain tumours. The review found no overall association between mobile phone use and cancer, no association with prolonged use (if people use their mobile phones for 10 years or more), and no association with the amount of mobile phone use (the number of calls made or the time spent on the phone).

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Mobile Phones Not Linked To Brain Cancer, Biggest Study To Date Finds

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  • by olsmeister ( 1488789 ) on Tuesday September 03, 2024 @11:13AM (#64759014)
    If they have not been able to prove a link after all these years, if there is any connection it has to be so tenuous as to be not worth worrying about.
    • Re: (Score:3, Funny)

      by quonset ( 4839537 )

      If they have not been able to prove a link after all these years, if there is any connection it has to be so tenuous as to be not worth worrying about.

      Don't worry. RFK, Jr will be along any minute now and claim millions of people are developing cancer despite all these studies. He's studied it himself in between hacking off whale heads with a chain saw and dropping off dead bears in parks.

    • If they have not been able to prove a link after all these years, if there is any connection it has to be so tenuous as to be not worth worrying about.

      This meta-study is pretty much agreeing with the physicists; there really is no plausible mechanism for microwaves to cause cancer other than the simple heating, and the power levels of cell phones are orders of magnitude too low to produce noticeable heating.

      • Re:Not concerned. (Score:5, Interesting)

        by ShanghaiBill ( 739463 ) on Tuesday September 03, 2024 @03:02PM (#64759586)

        In America, truckers get skin cancer on their left arm.

        In Australia, truckers get skin cancer on their right arm.

        That was a very strong indication that the sun causes skin cancer.

        Far more people hold their phone up to their right ear than their left ear.

        So, if phones caused brain cancer, tumors would occur more often on the right side than on the left.

        They don't.

        Laterality of brain tumors [nih.gov]

        • Far more people hold their phone up to their right ear than their left ear.

          Now if we could find a way to make obliviots who put their phone on speaker and hold it horizontally below their chins get cancer, now we'd be doing something useful.

        • by _merlin ( 160982 )

          Far more people hold their phone up to their right ear than their left ear.

          Is this actually true? I've always held my phone (or UHF CB transceiver or whatever) in my left hand so I can write, use a computer mouse, shoot, etc. with my dominant hand while talking on the phone. I see a lot of people do the same thing.

          • Re: (Score:2, Informative)

            According to ChatGPT:

            Right-handed people: About 68% of right-handed people use their right ear for their phone, while 25% use their left ear, and 7% have no preference.

            Left-handed people: About 72% of left-handed people use their left ear for their phone, while 23% use their right ear, and 5% have no preference.

          • Same. I've always held the phone with my left. I'm old enough to have used touchtone phones that had pulse dialing capability.
            • by _merlin ( 160982 )

              I'm old enough to have used touchtone phones that had pulse dialing capability.

              I'm old enough to have used dial phones. Get off my lawn!

          • Me too, been doing that since the days of landline (pre-mobile) days time. And now that you mention, everyone in my family uses left ear and so do most of the people that I see in my neighborhood and office. And we are all right handed, So I guess your logic of having the right hand free makes very good sense.

    • US Naval Medical Research Institute (1972) published these symptoms of exposure to radiation (EMF-radiation):
      - headaches
      - dizziness
      - nausea
      - anxiety
      - Difficulty concentrating
      - memory loss
      - insomnia
      - fatigue
      - muscle spams
      - tingling
      - altered reflexes
      - muscle + joint pain
      - leg/foot pain

      eyes:
      - pressure in/behind eyes
      - deteriorating vision
      -cataracts

      heart:
      - palpitations
      - arrhythmia
      - chest pain or pressure
      - low/high blood pressure

      respiratory:
      - sinusitis
      - bronchitis
      - asthma
      - pneumonia

      skin:
      - skin rash
      - itching
      - burn

      • You do realize the massive power difference between the RF output of a cell phone and a military shipâ(TM)s radar, yes?
    • And fer cryin' out loud, can we stop spending time and effort proving the moral equivalent of water is wet and fire is hot?

      At this point trying to show a non-link between cell phones and cancer is as pointful as proving the Earth is round.

  • they should be checking for worms eating your brain and treating you with horse dewormer.
  • Which is usually not deadly, at least not directly.

  • however (Score:4, Insightful)

    by cellocgw ( 617879 ) <cellocgw&gmail,com> on Tuesday September 03, 2024 @11:29AM (#64759064) Journal

    looking at the stuff provided to your phone from various social media sites will definitely destroy your brain.

    • by jonadab ( 583620 )

      That destroys your *mind* not your brain.

      Your statement is analagous to saying a computer virus destroys your computer's hard drive, when what it actually does is delete all your files.

      Yes, I know, I'm being picky and technical and pedantic. This is slashdot. Get used to it.

  • I think anyone who watches people who "enjoy" TikTok would disagree on the validity of this research.

  • by Anonymous Coward on Tuesday September 03, 2024 @11:34AM (#64759080)

    My dad got his Master's degree in electrical engineering in about 1974, around the time I was born.
    His research involved the design of waveguides to aim microwave-band radiation at animal test subjects to study health effects. They didn't find any problems back then.
    This kind of thing has been studied over and over again.

  • Wondering which poster will provide a theory proving phones cause brain cancer?
  • by vanDrunen ( 1075573 ) on Tuesday September 03, 2024 @11:36AM (#64759090) Homepage
    If you would naively look at cancer vs mobile device usage graphs you would conclude that brain cancer causes cellphones. In general I am not worried at all about any low-power EM radiation, from mobile devices, power lines or other sources. I would worry more about the plastic in these mobile devices or air, water and ground pollution in neighbourhoods that also happen to have overhead powerlines.
    • If you would naively look at cancer vs mobile device usage graphs you would conclude that brain cancer causes cellphones

      No, I don't think you would. There is no correlation to reverse.

      The review found no overall association between mobile phone use and cancer, no association with prolonged use (if people use their mobile phones for 10 years or more), and no association with the amount of mobile phone use

  • by Larsrc ( 1285062 ) on Tuesday September 03, 2024 @11:51AM (#64759128)

    It's always cancer in these studies. Are there no other conceivable harmful effects?

    • Re: (Score:2, Insightful)

      by quonset ( 4839537 )

      It's always cancer in these studies. Are there no other conceivable harmful effects?

      Such as? What other effect might there be?

      • Such as addiction and depression.

        https://therapybrands.com/blog... [therapybrands.com].

        • I doubt the RF energy from a phone could cause either of those conditions.
        • You cannot be serious. The current leading theory of what causes depression (the biogenic amine theory) is on the verge of being wholly disproven. There's no conceivable mechanism for non-ionizing radiation as a cause of depression or anxiety.

          There has been some really promising research related to transcranial magnets and glutamate but that's not the same as the RF emitted by cell phones/cell infrastructure.

          • If you look closer at the article I linked, it doesn't reference RF radiation at all. No, there is no link between RF radiation and depression. Mobile phone obsession *is* linked to depression.

            Notice that neither the headline nor the summary mention RF radiation (though the article does).

            Mobile Phones Not Linked To Brain Cancer, Biggest Study To Date Finds

            If a link were found by the study, cancer (or any potential problem) could be caused by RF radiation, or by some other non-RF cause. The study didn't limit its research to a single vector.

      • by grep -v '.*' * ( 780312 ) on Tuesday September 03, 2024 @12:55PM (#64759296)

        It's always cancer in these studies. Are there no other conceivable harmful effects?

        Such as? What other effect might there be?

        From some videos that I've seen, I'd say stupidity.

    • by physicsphairy ( 720718 ) on Tuesday September 03, 2024 @02:15PM (#64759476)

      It's always cancer in these studies. Are there no other conceivable harmful effects?

      You generally can't just test for an arbitrary effect. For one you have to be able to measure it - and if you want to measure it in a large cohort over a significant span of time it likely has to be something that already has institutionalized screened for. You also can't just say "I'll look for any health effect" because if you are looking at a thousand different possible effects e.g. with 1% possibility of a chance positive result, now you start seeing "positives' just by the law of statistics. Good studies have defined endpoints.

      This is also a systematic review which *requires* looking at a body of similar evidence - some topic that has recruited a lot of studies.

      However, testing for cancer is effectively testing for many other effects as cancer is often a downstream result. E.g., cell damage, inflammation, poor cardiovascular health -- all things that are associated with developing cancer.

    • ... ... what other effects would there be? Are you saying non-ionizing RF radiation could cause arthritis or high blood pressure or fuck up your golgi apparatus or something?

      Cancer is the only conceivable harmful effect because DNA damage is the only conceivable harmful effect of ionizing radiation.

    • by tal_mud ( 303383 )

      The number one cause of statistics is cancer.

  • Does Electromagnetic Radiation cause cancer? Cell phone transmitters don't put out much energy. The Sun transmits far more energy, of all wavelengths.
    • by Chris Mattern ( 191822 ) on Tuesday September 03, 2024 @12:05PM (#64759164)

      "The Sun transmits far more energy, of all wavelengths."

      Since the Sun *does* cause cancer, that doesn't help your argument as much as you'd think.

      (For the record, I don't believe in the cell phone/cancer connection either)

    • Non ionizing radiation at high power levels such as from radar transmitters (orders of magnitude above mobile phone output) is associated with higher rates of cancers,

      https://ehtrust.org/new-paper-... [ehtrust.org]

      • That study has 46 patients. It doesn't prove anything. The only thing that study proves is that someone performed a poorly-conceived study.
        • because you say so and you have expertise, more than actual scientific study? That is an ignorant and unscientific point of view

    • About a decade a go, I saw a friend holding his phone out in front of his face while talking. When he hung up, I asked why he held the phone like that. His answer? "Because of the risk of cancer caused by EMRs."...with an "s" at the end as if that's how you pluralized electromagnetic radiation. I told him that if he spent 10 minutes in sunlight, that was more radiations than he got using his phone for a year. Visible light alone is several orders of magnitude more energetic, and even that won't cause cancer

  • by FudRucker ( 866063 ) on Tuesday September 03, 2024 @12:02PM (#64759156)
    if microplastics have been found in human brains just think of other chemicals that has penetrated the brains of humans chemicals & solvents found in homes, garages, factories, hardware stores, etc...
  • So they needed a study to prove that physics still applies to biology. This won't convince the conspiracists of course.

    • There are conditions under which RF can cause damage to body, and so there are allowed limits of exposure. As example the SAR limit (and there are others) is lower in USA than in EU Studies of this article were done because of the possibility of mobile phone RF also having harmful effects.

      You mock from an unscientific viewpoint.

      • Physics says that microwaves are non-ionizing radiation, and in fact the only known health effects of microwave radiation are due to heating.

        The body is remarkably good at compensating for heating (you can walk out into sunlight and not die in a minute at a kilowatt per square meter), but if the intensity is high enough, you can overwhelm the thermoregulation.

        At power densities too low to overwhelm the body's thermoregulation, though-- and that includes cell phone power levels-- microwaves have no known hea

        • Except heating of the eyeballs and testes, which heat more because of lack of interior blood supply, are a known cause of tumors in those that work with high power RF gear. Besides effects of x-rays from other components of those systems

          • You are repeating what I said: the only known health effects of microwave radiation are due to heating.

            • so why are idiots here saying non-ionizing radiation can't cause tumors including cancerous ones. That's the point, it can.

  • Our brains are protected by layers of skin, cartilage, bone, meninges, & cerebrospinal fluid. It'd be very difficult to get microwaves through all that. Has anyone asked what the effects are on all those layers of protection though, e.g. skin cancer or meningitis?
    • Just to be clear, meningitis is simply the inflammation of the meninges, i.e. a symptom, & there are many causes.
    • You know you're talking about a transmitter that broadcasts over several miles that you hold directly up to your head right? If your head were not effectively transparent to these signals, then you would see noticeable decrease in signal if your head were between the phone and the nearest tower. You don't. Single-digit GHz frequencies go right through you.
      • 2.45 is quickly attenuated by water - its how your microwave works. 5 is blocked by much more. What you're discerning is the ability of radio to reflect and stay coherent enough for communication. Radio is a complex science, and signals can have an effect on cells but not at the level people claim. Frequency, power, duration, polarization, reflection and much more make this topic difficult to discuss.

        Most studies beam directly at a cellular system and observe an effect. I would postulate that most ar

        • Right, but unless you're very close, even in "dry" air there is much more water in the air between you and the tower than there is between your phone and your brain. If the signal can get through the atmosphere to the tower, it can get through your skin and fluids to your brain. As you say, what it does when absorbed in tissue is quite complex. I was merely trying to dispute the OPs claim that the "protection" surrounding the brain would have any effect in this case.
      • That's because that's how RF propagation works. You think you're talking about the same thing but you're not.
    • Well it wouldn't exactly be great if it caused cancer in your skin or eyeball either. Not that it does...
      • It's that the study & headlines are remarkably specific, not unlike other corporations that have tried to distract the public's attention away from any harms they might be knowingly doing. You know, like the tobacco, alcohol, pesticide, etc., industries have done on many occasions, historically speaking.
        • This is such a terrible point and no person with self-respect should make it. RF isn't a product marketed by a corporation - it's a concept. Cell phones not causing brain cancer has nothing to do with how any individual phone is made and everything to do with how electromagnetic radiation behaves and predictions that can be made from that behavior.

          • It's not a terrible point because the microwaves are produced by products that are marketed by corporations. Concentrating microwaves close to people's heads is a part of the design of mobile phones.

            Your turn.
  • by wakeboarder ( 2695839 ) on Tuesday September 03, 2024 @02:32PM (#64759504)
    Xckd showed a convinicing argument years ago: https://xkcd.com/925/ [xkcd.com]
  • The "cell phones cook your brains" idea has been around since the very beginning. When cell phones first came out in 1983, I got one. A few months later, I was watching people wandering around, oblivious to street traffic in Cambridge, MA, yelling about nothing into their new toys. I turned to my companion and opined, "Look around you. These things DO cause brain damage. But it's not from RF. You don't even need to turn them on!"

    41 years later, I stand by my words....

  • I installed car phones in the 1980s. I remember hearing about one or two heavy (mobile) phone users who got cancer near the ear, where the antenna would be. It wouldn't surprise me if there were a small number of actual cases since everyone's body chemistry differs significantly.

    That said, the power output on those analog phones, with their towers being farther away, were much higher then (3 watts for the transportables, but I can't recall the handhelds' output). Aren't today's phones capped at 0.25
    • The different frequencies don't matter, they're still in the non-ionizing spectrum. They're all just radios and not much different than radio your average taxi-cab or OTR truck driver uses.

      If non-ionizing radiation caused cancer, there would be an epidemic of cancers among radio operators and technicians.

      • by kackle ( 910159 )

        If non-ionizing radiation caused cancer, there would be an epidemic of cancers among radio operators and technicians.

        Good point, but they, too, use remote antennas, at least they did in our shop. I always wondered whether physics' superposition principle can come into play here, where two non-ionizing energies can meet at a point in space, doubling their impact on DNA, etc.

  • Maybe not brain cancer, but definitely "brain cancer".

  • It seems like a lot of men's phones spend more time in their pants pockets than by their ears, so I would think looking at testicular cancer studies would also be useful.

  • No brain cancer was dectable in *Australian* brains.

  • Similar claims about magnetic fields from electric razors causing cancer. Seems like if it were true it would cause hand cancer, not face cancer.

Keep up the good work! But please don't ask me to help.

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