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Air pollution linked to higher Alzheimer’s risk in 28 million older Americans

Breathing polluted air may do more than harm your lungs — it could also increase your risk of Alzheimer’s disease. In a sweeping study of nearly 28 million older Americans, researchers found that long term exposure to fine particle air pollution was linked to a higher likelihood of developing Alzheimer’s. The connection appeared to stem largely from pollution’s direct effects on the brain, rather than through related health conditions like hypertension or depression.

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