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Scientists issue dire warning: Microplastic accumulation in human brains escalating
(www.psypost.org)
this post was submitted on 12 Mar 2025
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At 600 degrees, there is probably some reaction happening there that may be similar to plastics. Basically, creating brain plastic and cooking it off to measure plastics. Im a bit skeptic.
I'm a microbiologist but my grad school work, research, and coursework was very chemistry heavy. There are no "probably does somethings" of significance here: the chemistry of plastic generation is extremely well researched.
Plastic is made of polymerized hydrocarbons, linked up identical tiny units of carbon strands called monomers. Polymerization, the linkage of the monomers into a polymer, requires the use of a catalyst. This is often done with increased heat and pressure to increase the speed of polymerization. Maximum temperatures are around 350°C for certain plastics but are more commonly 140-160°C as higher temperatures can cause the material to break down. Once the desired size of linkage is created, the polymer is capped to keep it from growing further.
Polymerized hydrocarbons degrade, not further polymerize somehow, at high temperatures like 600° C. Saying there's some mysterious, high-heat-driven polymerization is like saying burning wood, which is largely a polymer of glucose called cellulose, somehow creates more cellulose as it burns. The burning is due to the release of the energy contained in the bonds in the wood as they break down and react with oxygen.
Even if the process DID somehow create some plastic, a given mass of brain tissue would be expected to create predictable amounts of this mystery polymer, giving a background measurement that can be subtracted. Again, though, we know how this all works so it's not really a concern.
Brain tissue is not as simple as cellulose, but at 600 C with the molecules that make up the molecular soup, there would definitely be some lysing that would take place and form thing like free radicals, these have the potential to react forming longer chains of carbon, which could possibly create a false positive.
I'm sorry, but that's just word salad - it doesn't actually make sense. Even if it did, it would still be easily accounted for with control tissue.
Don't stress, the plastic's got 'em. Thanks for taking the time to share your explanations though.
What is this hypothesis based on?
It was anally sourced, their citations all point to the American Proctological Society.