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Is excessive sleepiness as we age a warning sign of dementia

New study links excessive sleepiness in women over 80 to double the risk of developing dementia within 5 years.

  • At least 55 million people are living with dementia worldwide, and numbers are increasing rapidly.
  • Studies have suggested links between altered sleep patterns and dementia risk.
  • A new study in women over 80 years of age has linked increased sleepiness with greater dementia risk.
  • Women with increased sleepiness were twice as likely to develop dementia during the 5-year study as those with stable sleep patterns.

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NeoHealth® ID 37797 · updated 5/29/2025