Can Microplastics Cause Dementia?

A recent study, featured in Nature Medicine, found microplastic particles in human brain tissue, raising concerns about their potential link to neurodegenerative diseases like dementia. Although no direct causation has been confirmed, the discovery highlights growing concerns over environmental toxins and brain health.

What Are Microplastics?

Microplastics are plastic particles under 5 millimeters, originating from plastic waste, synthetic fibers, and personal care products. They enter the body through food, water, and air.

How Might Microplastics Affect the Brain?

Research shows that microplastics can cross the blood-brain barrier, potentially causing inflammation and cellular damage—two factors linked to cognitive decline and conditions like Alzheimer’s.

Microplastics and Dementia: Current Understanding

While the presence of microplastics in brain tissue is concerning, scientists have not yet proven that they directly cause dementia. However, microplastics are known to trigger oxidative stress and inflammation, which can accelerate neurodegenerative processes. More research is needed to confirm any direct connection.

How to Reduce Microplastic Exposure:

• Use a quality water filter to reduce plastic particles.
• Choose glass or stainless steel containers over plastic.
• Limit plastic-packaged foods and choose fresh options.
• Wash synthetic fabrics with a microfiber-catching laundry bag.

BASS Medical Group Specialists in Brain Health

At BASS Medical Group, our neurologists and internal medicine specialists collaborate to evaluate, diagnose, and manage memory issues and cognitive decline. If you are concerned about brain health, our specialists provide personalized care based on the latest research.