Given the fact that they are so ubiquitous and yet no causal relation between microplastics and any health issue whatsoever has been identified in any rigorous study until today [1], I'd say a lot of this reporting is fear mongering by the eco/organic industry, aimed at gullible people who know very little about science. Not as insane and unphysical as electro smog, but definitely nowhere near asbestos. The linked article even goes into detail how warped the perceptions are among the general population and how doctors should educate people better, because there are real risks from other things out there. If you're really concerned about health effects of common pollutants, there are much bigger risks with actual proven causal effects in everyday compounds.

[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC12620896/

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strogonoff 3 hours ago | parent [-]

> BPA is a known endocrine disruptor. Although initially considered to be a weak environmental estrogen, more recent studies have demonstrated that BPA may be similar in potency to estradiol in stimulating some cellular responses.

https://pubmed.ncbi.nlm.nih.gov/21605673/

> In 2017 the European Chemicals Agency concluded that BPA should be listed as a substance of very high concern due to its properties as an endocrine disruptor.[30] In 2023, the European Food Safety Authority re-evaluated the safety of BFA and significantly reduced tolerable daily intake (TDI) to 0.2 nanograms (0.2 billionths of a gram), 20,000 times lower than the previous TDI from 2015.

> In 2012, the United States' Food and Drug Administration (FDA) banned the use of BPA in baby bottles intended for children under 12 months.[31] The Natural Resources Defense Council called the move inadequate, saying the FDA needed to ban BPA from all food packaging.

https://en.wikipedia.org/wiki/Health_effects_of_Bisphenol_A

> This followed another paper in early 2024, where a group of Italian researchers identified microplastics in plaques found in the carotid arteries – a pair of major vessels which deliver blood to the brain – of people with early-stage cardiovascular disease. This linked their presence to worsening disease progression. Over the following three years, individuals carrying these microplastics in their plaques had a 4.5-fold greater risk of stroke, heart attack or sudden death.

> Then in February 2025, another group of scientists identified microplastics in the brains of human cadavers. Most notably, those who had been diagnosed with dementia prior to their death had up to 10 times as much plastic in their brains compared to those without the condition. "We were shocked," says Matthew Campen, a University of New Mexico toxicology professor who led this study.

https://www.bbc.co.uk/future/article/20250723-how-do-the-mic...

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3 hours ago | parent | next [-]

[deleted]

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sigmoid10 3 hours ago | parent | prev [-]

This is exactly the kind of fear mongering reporting I was talking about and explains the general public's warped perception described in the research review I linked above. If you look at the brains of dead people with dementia, you'll also find more aluminum, which has caused people to panic about antiperspirants. But there is zero actual causal evidence that Al exposure causes dementia, if you do the science right. The same goes btw. for amyloid plaques, which has actually hindered real Alzheimer's research. So not even scientists are safe from the correlation!=causality problem. You can make up all kinds of potential hazards by comparing similar molecules and inventing bioavailability pathways. But at the end of the day this is just speculation and you need hard data to prove these assumptions.

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OutOfHere 3 hours ago | parent [-]

The aluminum relations are easily explained with the observation that healthy kidneys excrete aluminum well, whereas unhealthy kidneys don't and so it accumulates. There might also be similar variations in aluminum deposition in the brain depending on the brain's innate ability to wash out chemicals. In contrast, the excretory mechanisms of plastics seems less trustworthy.

The user is deliberately and blatantly ignoring a wealth of scientific literature that exists. Also, plastics come bundled with numerous other harmful classes of chemicals, e.g. phthalates, bisphenols, etc. The risk is not merely in the brain, but also in blood vessels, including those adjacent to the heart.

Beware the plastics industry shills on this page. They will have you ignore the science, become infertile, and then have you die, all for their temporary gain.

	▲	sigmoid10 3 hours ago \| parent [-]
		It doesn't change the fact that there is no actual causal evidence. Perhaps the demented brains simply suck at flushing out microplastics as well. If you ever find people with more microplastics exposure have more dementia (like they did for asbestos and lung cancer), then you're onto something. But no rigorous study has found this yet. And if they do, you will hear of it immediately for sure, given how much reporting there is for microplastics=bad for you.