Invisible But Dangerous : How Microplastics Could Be Damaging Your Brain And Body

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Every day, we go about our lives surrounded by countless things we don't think twice about-plastic bottles, synthetic fabrics, even the food packaging we use. These everyday objects are so woven into the fabric of our routines that we rarely consider the long-term impact they could have. It's easy to assume that if we can't see something harmful, it doesn't pose a threat. But what if these products we use are slowly introducing a hidden danger into our bodies? Read on to find out more.

The Silent Invasion Of Plastics

Plastic is everywhere-our air, food, water, and even the products we use daily. And now, it's creeping into our bodies in ways we hadn't fully realised. Microplastics, those tiny plastic particles, and even smaller nanoplastics are making their way into our bloodstream, organs, and shockingly, even our brains.

Scientists have long linked these particles to health problems like lung disease, liver damage, and reduced fertility in men. But recent studies suggest an even graver concern: plastic particles in the brain may contribute to issues like dementia, Parkinson's, and developmental challenges in kids.
These particles are incredibly small, some are just a fraction of a millimetre, while others are so tiny they're measured in billionths of a centimetre. It's a silent, invisible invasion with serious implications for our health.

Major Risks Of Microplastics

On average, we're swallowing about 5 grams of plastic each week, which is roughly the same as a credit card. Over a whole year, that adds up to half a pound of plastic in our bodies. And it's not just any plastic, these tiny particles can be toxic. Studies show that microplastics can cause inflammation in our organs and even carry harmful bacteria and viruses.

Until recently, scientists thought our brains were safe from plastic thanks to the blood-brain barrier, a filter that blocks out most harmful substances. But new research suggests microplastics are small enough to sneak past this barrier.

A study published in September found microplastic particles in the brains of people who had passed away, particularly in the olfactory bulbs, which play a key role in our sense of smell and are more vulnerable to these invaders.

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The Pathway To Brain Disorders

The study led by environmental engineer Luís Fernando Amato-Lourenço from Berlin University suggests that inhaled microplastics might bypass the blood-brain barrier by travelling through nasal mucus and mixing with brain fluids around the olfactory bulbs.

These bulbs are more vulnerable due to tiny "perforations" in the bone structures. The olfactory nerve, which sends smell signals to the brain, in near areas is involved in thinking and decision-making.

The most common plastic found was polypropylene, which is used in everything from packaging to clothing, hinting that indoor environments could be a major source of these particles.

Thais Mauad, a co-researcher, highlighted the danger of microplastics entering cells and potentially disrupting bodily functions, especially in light of the growing concerns over neurodegenerative diseases like Parkinson's.

Alarming Findings By Studies And Research

Studies on mice and humans are raising alarms about the effects of microplastics on the brain. A 2022 study in the journal Chemosphere has shown how microplastics cause chronic inflammation and brain cell damage. One study even found that pregnant mice passed these particles onto their unborn babies.

Another human study, led by Dr. Matthew Campen at the University of New Mexico, discovered that microplastics, especially polyethylene, were found in much higher amounts in human brains compared to the liver and kidneys. This might be because the brain, despite its protective barrier, struggles to clear out toxins like other organs do.

The research also revealed that plastic contamination in brains has increased significantly over recent years, reflecting the rise in environmental plastic pollution. Experts like Professor Richard Thompson warn that the problem could get much worse by 2040, urging us to reduce plastic waste now starting with single-use plastics like bottles.

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To wrap it up, a 2020 OECD study found that synthetic fabrics like polyester shed microplastics into the air, so opting for natural fibres like cotton or wool is a good move. The University of Hull's study showed microplastics in the lungs, highlighting the risks of synthetic fibres.

The University of Birmingham found that carpets increase microplastic pollution indoors, so switching to natural flooring is a smart choice. Additionally, a study by North Dakota State University revealed that plastic chopping boards release millions of microplastics, suggesting wooden boards are a safer alternative.

And also regular cleaning with a damp cloth or a vacuum with a HEPA filter can also reduce exposure. While it's hard to completely eliminate plastic exposure, these steps can significantly lower the risks to your brain and overall health. The key is to make mindful choices wherever possible.

Disclaimer: The information provided in this article is for general informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or a qualified healthcare provider with any questions you may have regarding a medical condition.