Air pollution: cognitive decline and dementia The Committee on the Medical Effects of Air Pollutants reviewed nearly 70 studies in human populations (epidemiological studies) which looked at possible links between air pollution and a decline in mental ability and dementia in older people. They also considered studies which investigated how air pollution might affect the brain.
From this review, it can be concluded that it is likely that air pollution does contribute to these effects. The most likely way this occurs is through effects on the circulation. It is known that air pollutants, particularly small particles, can affect the heart and blood vessels, including to the brain. UK Health Security Agency
See also:
- Air pollution IS causing dementia: UK Government advisers acknowledge link for first time The Daily Mail
- Air pollution linked to rise in dementia in major Government study The Daily Telegraph
- Air pollution is ‘likely’ to raise dementia risk, find UK government experts The Guardian
- Air pollution likely to be causing dementia, say UK science advisers New Scientist
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