Microplastics Found in Human Brain's Olfactory Bulb in 8 of 15 Cases

Sep 16, 2024, 05:33 PM

Recent studies have revealed the presence of microplastics in the human brain, specifically in the olfactory bulb, which is responsible for processing smell. These tiny plastic fibers, some as small as 5.5 micrometers, have previously been found in various organs including the heart, liver, lungs, gut, testes, placenta, and semen. The latest research, published in JAMA Network Open, indicates that microplastics can enter the brain through inhalation, raising concerns about potential links to health issues such as dementia. In 8 of 15 deceased individuals, aged 33-100 years, microplastics were found in their olfactory bulb.