Microplastics are everywhere – in our blood, guts, lungs and even brains. Scientists estimate we carry about 5g inside us, roughly a teaspoon.
New research from Austria shows microplastics can alter gut bacteria in ways linked to depression and cancer. “Reducing exposure where possible is a wise precaution,” said Dr Christian Pacher-Deutsch.
These particles, shed from packaging, clothing and tyres, are small enough to enter our organs. Studies in mice found they affect brain health and behaviour. In humans, microplastics have been found in the brains of dementia patients and in arterial plaques linked to higher heart-attack risk.
Experts urge caution: the science is new, and no one knows what levels are safe. But many researchers are already cutting their own exposure.
How to Reduce Your Risk
- Don’t heat food or drinks in plastic.
- Use glass or metal containers.
- Avoid plastic-sealed teabags and boards.
- Choose natural fabrics and check cosmetics for plastics.
- Reuse, don’t discard, plastic containers.
We can’t escape microplastics entirely — but small changes can help protect both our health and the planet.
