They say microplastics are in every organism, everywhere. Seems like a large enough sample size that we should have an idea of what kind of damage they do?
Sample size isn't the problem. The problem is we don't have a control group to compare against. Ideally, you'd compare people with micro plastics to people without them, but those people don't really exist anymore.
... brain tissue from people who had been diagnosed with dementia had up to 10 times as much plastic in their brains as everyone else, Campen said. But while there is a clear correlation, the study design cannot show whether higher levels of plastic in the brain caused the dementia symptoms – they may simply accumulate more due to the disease process itself, he said.
No, plastic in the brain will not replace gray matter. Microplastics can be harmful and cause inflammation, cell damage, and other health issues, but they won't substitute or transform brain tissue.
Blood donation can help reduce Micoplastics and PFAS in your blood. So if you haven't given blood in a while it's worth it for a personal benefit as well as a social one.
but it's not how microplastics work. Microplastics are tiny plastic particles that have been found in various parts of the human body, including the brain. However, their presence is usually harmful and can cause inflammation, cell damage, and other negative health effects.