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Science

Levels of Microplastics in Human Brains May Be Rapidly Rising, Study Suggests (theguardian.com) 53

The exponential rise in microplastic pollution over the past 50 years may be reflected in increasing contamination in human brains, according to a new study. From a report: It found a rising trend in micro- and nanoplastics in brain tissue from dozens of postmortems carried out between 1997 and 2024. The researchers also found the tiny particles in liver and kidney samples. The human body is widely contaminated by microplastics. They have also been found in blood, semen, breast milk, placentas and bone marrow. The impact on human health is largely unknown, but they have been linked to strokes and heart attacks.

The scientists also found that the concentration of microplastics was about six times higher in brain samples from people who had dementia. However, the damage dementia causes in the brain would be expected to increase concentrations, the researchers said, meaning no causal link should be assumed. "Given the exponentially rising environmental presence of micro- and nanoplastics, this data compels a much larger effort to understand whether they have a role in neurological disorders or other human health effects," said the researchers, who were led by Prof Matthew Campen at the University of New Mexico in the US.

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Levels of Microplastics in Human Brains May Be Rapidly Rising, Study Suggests

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  • ... they were extinguished by eating plastics?

    • by Anonymous Coward
      The Drake equation always uses a mushroom cloud icon for "they killed themselves" case. We might need to update that to a pollution icon. But what does a microplastics icon look like?
  • by JamesTRexx ( 675890 ) on Monday February 03, 2025 @12:01PM (#65138603) Journal

    The plastic doesn't disappear and it's still mass produced, we will be seeing higher levels.
    And no one of consequence is doing anything seriously about it.

    • So...how exactly are humans ingesting these plastic particles?

      What is the entry vector(s)?

      • by ArchieBunker ( 132337 ) on Monday February 03, 2025 @12:24PM (#65138663)

        Air, water, food, literally everything.

      • by smooth wombat ( 796938 ) on Monday February 03, 2025 @12:38PM (#65138685) Journal

        Every time you use a plastic scrubbie on your pots and pans, you are creating microplastics.

        Everytime you wash and dry clothes made from synthetic materials, you are creating microplastics.

        Any time you break a piece of plastic, you are creating microplastics.

        All of the above, and more, gets into our water sources which leads to the foods we eat, not to mention that which gets into the air we breathe.

        As the other poster said, literally everything.

        • by toxonix ( 1793960 ) on Monday February 03, 2025 @03:39PM (#65139227)

          I believe most microplastics are released by people sanding boats and cars. Have you ever sanded Bondo/filler/fairing compound? It's polyester. Catalyzed polyester just like your poly pajamas, but it's used for shaping and fairing before painting. Most builders sand off about 3/4ths of what they mix up and apply.
          For boat yards, which are near waterways, this is often done in the open air. Car shops generally (are supposed to use) filters to pick up sanding residue, but most of them just do it outside and let the wind blow it away.
          Having done both, I can't imagine a more potent or available form of plastics in the environment. There's also quite a bit of magnesium carbonate mixed in there to make it easy to sand, so a lot of the dust is just chalk. But the bonding agent is polyester.
          If you want to see some people with neurological damage, look no further than your local bodyshop.
          I don't know if pot scrubbers contribute more than the paint/coatings industry.

          • I believe most microplastics are released by people sanding boats and cars.

            Nope, laundry. Synthetic fibers cause much more microplastics. Build some sort of filter that scales from personal to industrial washers and driers, get the government to mandate them, and you can make a lot of money.

          • Re: (Score:3, Informative)

            by JBeretta ( 7487512 )

            I believe most microplastics are released by people sanding boats and cars.

            Here you are on the internet, with all the research at your fingertips, and you just can't be bothered.... Beliefs are not facts, you fucking clown.

            According to current research, the largest source of microplastics is synthetic textiles, specifically microfibers shed during laundry from clothes like polyester and acrylic; this is considered the primary contributor to microplastic pollution in the environment, making up a significant portion of the microplastics found in oceans and waterways.

            Another maj

            • Interestingly my wife complains of seeing MORE synthetic fiber clothing in recent years than prior. You're not even safe with things like wool -- superwash wool is coated with plastic to bind the 'fishooks.' I asked a woolen mill operator about this and she told me that you can either a) soak the wool in an acid bath to remove some of them or coat it in plastic. The acid bath is harder to do so everyone does plastic - and it's mostly done in east asia, but, of course, the plastic flakes off here.
        • by Tablizer ( 95088 )

          or everytime you have to throw out a PC because Microsoft switched to a DRM OS.

        • This is sort of off topic - but try those chainmail scrubbers - I have a small link one and a large link one for a 'washcloth' and a 'scrubbie.' You can also boil them when you want them really clean. That and a cotton cloth do good for me. I agree about synthetic materials, removed them from my clothing decades ago. Don't like feeling like I'm wearing a trash bag. The exception is the nylon lining of my winter coat.
      • A lot of plastic waste ends up in waterways and the ocean, where the environment gradually breaks it down into smaller and smaller particles that wash around the world and into anything and everything we get from the ground. Some were even found on top of Everest, suggesting the particles are in wind and/or rain.

        We accidentally invented reverse "God Goo" (also known as Gray Goo).

  • How we'll be able to differentiate between AI and some of the anonymous cowards who post the same crap here year after year.

  • by Mindragon ( 627249 ) on Monday February 03, 2025 @12:22PM (#65138657) Journal

    I know correlation isn't causation but damn what a coincidence. The more plastic that we use, the dumber it is that we get. Weird, huh?

    • by Targon ( 17348 )

      It's not that microplastics are the blame there, it's that stupid people reproduce at a much higher rate than intelligent people.

      • Is the differentiator intelligence, or education? And is there a verified statistic you can point to or is this mere supposition?

        It does satisfy the wishes of some of the statement was shown to be true, but wishing does not make it so.

        • by Anonymous Coward

          just about anyone who says that got their data from the intro segment of idiocracy

          of course its the latter but it's not as masturbatory to say (plus it lets you do nothing to solve the problem)

      • by Tablizer ( 95088 )

        They are not mutually exclusive. Many factors may be making people dumber.

        The Future Is Morons!

      • Cyril Kornbluth wrote a novella in the .. 1930s? 1940s? called _The Marching Morons_. You can find it on Project Gutenberg. It's a good read.
  • Don't worry Scro, plenty of tards are out there living kick-ass lives.

  • From the fine summary:

    The impact on human health is largely unknown, but they have been linked to strokes and heart attacks.

    The scientists also found that the concentration of microplastics was about six times higher in brain samples from people who had dementia.

    Strokes, heart attacks, and dementia sound like things correlated to age and poor health. People that are older would have had more time alive to accumulate micro-plastics in their body. People in poor health might be eating more food, lower quality food, have plastic hoses feeding them fluids by IV, air into their lungs, or whatever, or some combination of the above.

    I'm seeing enough reason to believe that there's some underlying cause to the symptoms seen beside the level of plasti

  • by hdyoung ( 5182939 ) on Monday February 03, 2025 @01:50PM (#65138899)
    long before climate change.

    The wealthy can escape climate change. To the elites, it's an academic problem that affects other people. They can move to wherever they want, and there will always be beachfront property somewhere to develop. I have very little hope that this problem will be addressed anytime soon.

    Microplastics are different. Elon Musk, Donald Trump and Xi Jinping probably have just as many microplastics in their brains as the guy who works the counter at the local gas station, and they can't escape it. This problem just might get addressed.
    • by kackle ( 910159 )

      Elon Musk, Donald Trump and Xi Jinping probably have just as many microplastics in their brains...

      And, they'll be in charge...just like those who drank from lead-lined chalises.

      • After the sh*tshow of the last 4 years, you're on thin ice here with casting aspersions on the brains of those currently in charge.
        • by kackle ( 910159 )
          I'm not taking sides, I was just adding to what he said: Microplastics are ubiquitous now and I can see how it could adversely affect our leaders' brains, and we would never know. "Boo" for us!
    • by Tablizer ( 95088 )

      Elon Musk, Donald Trump and Xi Jinping probably have just as many microplastics in their brains as the guy who works the counter [so have an incentive to solve].

      Yes, but it just might make them more maniacal instead of caring.

      One theory is Rome fell because increasing lead use made everybody mad.

    • by rapjr ( 732628 )
      The rich will just buy air purifiers, special food, and filter their water. They will stay in their purified domed installations, keeping their essence pure while the masses get stupider.
      • by piojo ( 995934 )

        You can make a cube air purifier for less than $100 with no extra tools but caulk, cardboard, and scissors. The foods we consider best and healthiest are still full of microplastics (and not prohibitively expensive for most people, anyway). And a good solid ceramic+carbon water filter costs ~$50 and the filter can be changed every year or two.

        The difference is not that the rich will be immune, but that the rich person's air filter will be quieter, and not taking up as much space (relatively). The rich perso

      • When you say a "dome", it would need to be a literal dome in order to avoid microplastics. As in, you have to be willing to live as a bubble-boy. Even the ultra-wealthy would have a hard time doing that. Synthetic anything? Nope. Want to go out to a restaurant? Not gonna happen. All your food will need to be hydroponic. Want a steak for dinner? Sure, but only if the cow was ALSO raised in a bubble, and fed exclusively on hydroponic feed also grown in a bubble. I'll bet that steak would easily run 10k. Vacat
  • Hopefully microplastics are mostly benign. If I has some latent effect to diminish our intelligence, we could be looking at a second dark ages or worse.

    Tetra ethyl lead gasoline additives came close in recent history.

    Could this be a great filter?

  • Queue money to get scientists to confuse the cause of post-2020 increases in pathologies and all-cause-mortality. This is always the game plan. Pay for studies to muddy the waters on whatever it may be: tobacco, artificial food dyes, vaccines, statins, climate change, etc.. In this case they are so transparently desperate to obscure the impact of mRNA jabs on our health they'll use anything they can find that we might accept as having been increasing since 2020 which "could explain the rising curves in [
  • I had a PET bottle of water stored for a week on a high shelf where hot air collects. Unfortunately it had a very strong taste of burned plastic but I swallowed it. It was horrible. I can only imagine this is exactly what you don't want to do.

  • by BoogieChile ( 517082 ) on Monday February 03, 2025 @08:55PM (#65139869)

    That's a good thing, right?

  • I would throw more science at it. All we know now is that the junk is within and without us at an increasing rate. What we clearly do not yet know is what effect it is having on living things, especially humans. My gut feel is we need to science that shit ASAP, and I would not be surprised of we will need to start remediating it but given how handy the plastics are, I dunno.

    Feels like we need Dr. Who to come and once again save us from the plastic monster. Maybe the Bad Wolf can help.

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