February 26th, 2026

Microplastics are everywhere—in our water, food, air, and even inside the human body. As research continues to explore environmental contributors to neurological conditions, many people are asking: How are microplastics connected to Parkinson’s disease?
While scientists are still studying the relationship, emerging evidence suggests that environmental toxins, including microplastics, may play a role in brain inflammation and neurodegeneration.

What researchers are uncovering about microplastics and brain health may surprise you—and understanding it could change how we think about Parkinson’s risk.  Keep reading to learn more.

Microplastics are tiny plastic particles less than 5 millimeters in size. They come from:

• Broken-down plastic waste
• Synthetic clothing fibers
• Personal care products
• Food packaging
• Bottled water and contaminated seafood

Studies have found microplastics in human blood, lungs, and even brain tissue. This raises important questions about long-term neurological effects.

​Parkinson's disease is a progressive neurological disorder caused by the loss of dopamine-producing neurons in the brain. Symptoms include:

• Resting tremor
• Slowness of movement (bradykinesia)
• Muscle rigidity
• Balance difficulties
• Changes in speech and facial expression

While genetics play a role, environmental exposures have long been studied as potential risk factors.

​How Could Microplastics Be Connected to Parkinson’s?
Although research is ongoing, scientists are investigating several possible mechanisms:
1. Neuroinflammation:
Microplastics may trigger chronic inflammation in the body. Persistent inflammation in the brain is considered a key contributor to Parkinson’s progression.
2. Oxidative Stress:
Tiny plastic particles may increase oxidative stress—an imbalance between free radicals and antioxidants—which can damage dopamine-producing neurons.
3. Toxic Chemical Exposure:
Microplastics can carry harmful chemicals such as BPA, phthalates, and heavy metals. Some environmental toxins have already been linked to higher Parkinson’s risk.
4. Gut-Brain Axis Disruption:
Emerging Parkinson’s research suggests the disease may begin in the gut. Microplastics can alter gut bacteria, potentially influencing inflammation and neurological health through the gut-brain connection.

It’s important to note: Microplastics are not confirmed as a direct cause of Parkinson’s disease. However, environmental health research continues to explore how cumulative exposure may contribute to neurological vulnerability.

What Can You Do?
While more research is needed, reducing microplastic exposure may support overall health:

• Avoid heating food in plastic containers
• Use glass or stainless steel water bottles
• Choose natural fiber clothing
• Filter drinking water
• Reduce single-use plastics

Small changes can make a meaningful difference in long-term environmental exposure.

​Why Support Matters
A diagnosis of any form of Parkinson’s can feel overwhelming. But with the right support and resources, individuals can maintain independence, quality of life, and emotional well-being.

For resources, referrals, and support in navigating Parkinson’s and related conditions, contact the Parkinson’s Association of Southwest Florida at www.paswfl.org or call 239-417-3465.
For over 25 years, PASWFL has provided free, high-quality services and programs to individuals and families touched by Parkinson’s disease in Southwest Florida. Their goal is simple: help people live well with PD, regardless of where they are in their journey.

Each week, PASWFL offers more than 25 free programs and support groups, including:

• Wellness and fitness classes
• Speech Exercise classes
• Educational seminars
• Support for care partners
• Support groups

There are no fees to become a member, and PASWFL welcomes anyone touched by PD.

Take the First Step Toward Living WellIf you suspect early Parkinson’s or have been recently diagnosed, you don’t have to face it alone.
👉 Sign up for the PASWFL newsletter:
https://parkinsonassociationswfl.org/signup-enews.html
👉 Become a member — it’s free and confidential:
https://parkinsonassociationswfl.org/signup.html
To learn more, visit www.paswfl.org and discover the power of support, education, and community.