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Community noise exposure ups MCI, Alzheimer's risk

Older adults who lived in areas with 10 decibels higher daytime noise levels were 36% more likely to develop mild cognitive impairment and 29% more likely to develop Alzheimer's disease, according to a study in Alzheimer's & Dementia. "These findings suggest that within typical urban communities in the United States, higher levels of noise may impact the brains of older adults and make it harder for them to function without assistance," said researcher Sara Adar.

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