New study hints at a hidden Alzheimer’s risk factor affecting older Americans

People with greater exposure to air pollution could face a higher risk of developing Alzheimer's disease, according to a new study by Emory University in Atlanta.

Air pollution has previously been established as a risk factor for Alzheimer’s, as well as other chronic conditions, like hypertension, stroke and depression, the researchers noted.

Since those other conditions are themselves linked to Alzheimer’s, the researchers said it’s not yet clear whether air pollution harms brain health on its own...