We all know air pollution is bad for our lungs. But what if it also affects how we think and feel?
A recent study suggests that just a few hours in polluted air can make it harder to concentrate and recognize emotions, according to WP.
This could have real consequences for work, school, and everyday interactions.
Researchers from the University of Birmingham and the University of Manchester studied how air pollution impacts cognitive function.
Their findings, published in Nature Communications, reveal that short-term exposure to high levels of particulate matter (PM) can disrupt attention and emotion recognition.
How the Study Was Conducted
The study involved 26 healthy participants. Some were exposed to air polluted with candle smoke for an hour, while others breathed clean air.
Before and after the exposure, researchers tested their focus, working memory, selective attention, and ability to recognize emotions.
The results were striking. Those who inhaled polluted air had more trouble concentrating and identifying facial expressions like happiness or fear.
Their selective attention—important for filtering distractions—was also weakened. However, their working memory and reaction speed remained largely unaffected.
Why Does Pollution Affect the Brain?
Scientists believe inflammation may play a key role. Fine particulate matter can enter the bloodstream and cause inflammation in the brain.
This could disrupt neural pathways responsible for focus and emotional processing.
Dr. Thomas Faherty, one of the study’s authors, explained that even everyday activities, like shopping for groceries, could be affected.
His colleague, Francis Pope, pointed out the larger implications. Poor air quality could lower workplace productivity and even contribute to social tensions.
Some studies suggest a link between high pollution levels and increased crime rates in cities.
Long-Term Risks and Future Research
While this study focused on short-term effects, experts warn that long-term exposure could be even more harmful.
Chronic pollution exposure has already been linked to neurodegenerative diseases like Alzheimer’s and Parkinson’s.
The World Health Organization estimates that air pollution causes 4.2 million premature deaths each year.
Scientists say stricter air quality regulations are needed to protect public health—especially for children, the elderly, and those living in highly polluted areas.
