Bryan Johnson· Author
Animal research shows mechanistically how microplastic particles do cross the blood-brain barrier. In mice, polystyrene nanoparticles at 293 nm reached the brain within 2 hours of oral exposure.
The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Animal research shows mechanistically how microplastic particles do cross the blood-brain barrier. In mice, polystyrene nanoparticles at 293 nm reached the brain within 2 hours of oral exposure.
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The big ones are a proxy for the dangerous small ones.
This study argues that eliminating ultra-processed foods (i.e. chicken mcnuggets, breaded shrimp) carries an additional benefit: reducing brain microplastic accumulation.
there's emerging evidence suggesting that microplastics especially the smaller nanoplastics so these are less than one micrometer can actually cross the bloodb brain barrier and once they're in they could cause some real damage for example one study found that polystyrene microplastics were accumulating in critical brain regions like the hippocampus and the prefrontal cortex