New research by a collaboration of UK‑based scientists has revealed that common indoor and outdoor air pollutants can alter both brain and respiratory function within just four hours of exposure, offering key insights into how air pollution impacts brain health and may contribute to dementia risk.
New research by a collaboration of UK‑based scientists has revealed that common indoor and outdoor air pollutants can alter both brain and respiratory function within just four hours of exposure, offering key insights into how air pollution impacts brain health and may contribute to dementia risk.
Air pollution can influence the brain either directly, when harmful particles enter the brain, or indirectly, through inflammation in the lungs which then impacts the brain. Neurological diseases have been increasing for decades and there is now a greater appreciation that long term exposure to elevated levels of air pollution are associated in dementia risk. While we often categorise air quality by the total amount of particulate matter, this new study demonstrates that the source of the pollution matters as much as the quantity.
The findings in NPJ Clean Air reveal that different pollutant sources produce varied health effects even at identical concentrations in the air. Recognising these differences is essential for shaping public policy, improving clinical diagnosis and developing protective strategies. With an ever‑growing ageing population and increasing urbanisation, the public‑health imperative to mitigate neurological disease becomes increasingly urgent.
Read More: University of Manchester
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