A close-up photo shows a fingertip covered in tiny, translucent microplastics.

The discovery that microplastics are infiltrating human brains at alarming rates has sparked concerns within the scientific community. These tiny particles, commonly found in everyday products, are not just an environmental issue but pose significant health risks as well.

This article delves into the recent study that sheds light on the prevalence of microplastics in human organs, particularly the brain. If you are one of the many concerned about how this can impact your healthy living, read on.

Rising Concern: Microplastics In Human Brains

A recent study, although pending peer review, has uncovered startling levels of microplastics in human brain samples. This research, conducted by Matthew Campen and his team at the University of New Mexico, analyzed samples from deceased individuals and found that microplastics constituted about 0.48% of the brain's weight. These findings are documented in a preprint on the National Library of Medicine website.

Sources And Types Of Microplastics

The study examined samples from the liver, kidneys, and brain frontal cortexes collected between 2016 and 2024 in Albuquerque, New Mexico. Key findings include that by 2024, the plastic content in brains had increased by 50% compared to 2016.

Higher concentration in the brain is another worrying concern, as plastic levels in the brain were seven to 30 times higher than in the liver and kidneys. Also, the study found polyethylene, used in bags and bottles, was the most common plastic found.

Effects On Human Health

Microplastics in the human body have been associated with various health risks. While studies on fish have shown behavioral changes due to microplastic accumulation in their brains, the implications for humans are still being explored. Medical literature reviews link these particles to the following:

  • neural disorders;
  • chronic diseases;
  • DNA damage;
  • organ dysfunction;
  • metabolic issues; and
  • weakened immune responses.
 

The increase in microplastics within human systems parallels the rising global rates of Alzheimer's and other dementia-related conditions, highlighting the potential for significant public health challenges.

Microplastics In Everyday Life

Microplastics are ubiquitous and found in numerous everyday products and environments, from everyday products like toothpaste, beer, honey, salt, and sugar to tap or bottled water and the air we breathe, leading to possible effects on weather patterns.

As the presence of microplastics in the human brain is linked to severe health issues, further research is needed to understand their full impact and develop strategies to mitigate their presence in our environment and bodies, which demand urgent attention from both the scientific community and policymakers.