Microplastics are now in our blood, lungs, guts – even our brains. Scientists estimate we each carry about a teaspoon of plastic inside us, and new research suggests it may be affecting our health.
Austrian researchers found that exposing gut bacteria to microplastics changed their balance and chemical output in ways linked to depression and cancer. “Reducing exposure where possible is a wise precaution,” said Dr Christian Pacher-Deutsch.
Microplastics come from packaging, clothes, tyres and cosmetics. They can slip into our bloodstream and organs. “We’re finding them in almost every tissue,” said Dr Jaime Ross, whose mice studies showed behaviour and brain changes after exposure.
Other studies found plastic in human arteries and brains, increasing risks of heart disease and dementia. Still, scientists warn against panic: “We don’t yet know how harmful they are,” said Prof Stephanie Wright.
How to Cut Your Exposure
- Don’t heat food or drinks in plastic.
- Use glass, steel, or wood instead.
- Try loose-leaf tea and natural fabrics.
- Avoid cosmetics with plastic ingredients.
- Stay clear of heavy traffic to limit inhalation.
We can’t avoid plastic completely — but small choices may help protect our health and our planet.
