It Has Already Reached the Brain: The Frightening Discovery About Plastic Particles in Our Bodies

A new study reveals how microscopic plastic particles penetrate the blood-brain barrier. Researchers examined four common types of plastic and found that three of them are naturally attracted to the brain barrier, dissolve within it, and may pose health risks. The study opens hope for developing drugs to block the phenomenon.

A new study sheds light on a concerning phenomenon: microscopic plastic particles manage to penetrate the 'blood-brain barrier' – a natural wall designed to protect the brain from toxic and harmful substances. The researchers used advanced computer simulations lasting over 28 microseconds and examined four common types of plastic: polyethylene (plastic bags), polypropylene (food containers), polystyrene (styrofoam and disposable utensils), and polyethylene terephthalate (drink bottles). The results showed that three of the materials are naturally attracted to the brain barrier due to their chemical structure, while polyethylene terephthalate was found to be less adapted. The plastics reach the brain as tiny clumps, dissolve completely within the protective layer, and exit on the other side as broken-down material chains. The researchers noted that more 'flexible' plastic excels in the dissolution process. The findings open hope for developing drugs to block the phenomenon.