In that same study, they looked post-mortem at people that had dementia like Alzheimer's disease. And those individuals that had dementia and Alzheimer's disease had ten times more microplastics in their brains than people that did not have dementia and Alzheimer's disease, 10 times more ... There are animal studies that have shown that microplastics in the brain can cause inflammation, chronic inflammation, and we do know that plays a big role in brain aging, dementia, and Alzheimer's disease.