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Severe air pollution can speed up neurodegeneration when the brain is at the peak of its development — during childhood. Pictured here, a child in Beijing. (Shutterstock)

Air pollution in global megacities linked to children’s cognitive decline, Alzheimer’s and death

Investigation of the brains of children and young adults who died suddenly in Mexico City revealed amyloid plaques similar to those found in the brains of people with Alzheimer’s disease.

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