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Insomnia Raises Dementia Risk in Older Adults

New research links chronic insomnia to faster brain aging and cognitive decline.

Naveen Sankar S's avatar
Naveen Sankar S
Sep 10, 2025
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A Mayo Clinic study following over 2,700 cognitively healthy older adults found that chronic insomnia increased the risk of mild cognitive impairment or dementia by 40% and was tied to accelerated brain aging, equivalent to 3.5 additional years.

Study Details

Researchers analyzed data from the Mayo Clinic Study of Aging, including 2,750 older adults with …

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