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Story perspectives

Chronic Insomnia Raises Dementia Risk by 40%

9/16/2025

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Story summary
  • Chronic insomnia, occurring at least three nights a week for three months, may elevate dementia risk.
  • A study of 2,750 participants, averaging 70 years old, found 16% reported chronic insomnia over 5.6 years.
  • Insomniacs showed increased amyloid plaque formation, raising their risk of mild cognitive impairment by 40%.
  • In 2024, 12% of Americans faced chronic insomnia, significantly affecting brain health.
  • Insufficient sleep alters brain function, potentially indicating future cognitive decline.