A recent study has revealed that human brains contain a spoonful of microplastics and nanoplastics, raising serious concerns about our health. The levels of these tiny plastic fragments are 3 to 5 times higher in individuals with dementia.
Researchers analyzed brain tissue from autopsies, comparing samples from 2016 to 2024, and found that the frontal cortex contains much higher concentrations of microplastics and nanoplastics compared to other vital organs.
The main concern lies with nanoplastics, which are particles smaller than 200 nanometers. These small particles could potentially cross the blood-brain barrier, leading to implications for neurological health.
According to Dr. Nicholas Fabiano, lead author of the commentary, “the dramatic increase in brain microplastic concentrations over just eight years is particularly alarming.” The study suggests that switching to filtered tap water instead of bottled water can significantly reduce microplastic intake, with potential benefits for overall health.
Other key sources of microplastic intake include plastic tea bags and improper food storage. Heating food in plastic containers, especially in the microwave, can also release substantial amounts of microplastics and nanoplastics.
While these findings are alarming, researchers emphasize that more research is needed to confirm whether lowering microplastic intake leads to reduced accumulation in human tissues. The commentary calls for urgent research priorities, including establishing clear exposure limits and assessing long-term health consequences of microplastic accumulation.
Source: https://interestingengineering.com/health/human-brains-contain-spoonful-of-microplastics-dementia-risk-skyrockets-study