Sleep Issues in 70s Linked to Higher Dementia Risk, Study Reveals

November 7, 2024
Sleep Issues in 70s Linked to Higher Dementia Risk, Study Reveals
  • A recent study indicates that older adults, particularly those in their seventies, who experience sleep issues are at a heightened risk of developing motoric cognitive risk syndrome (MCR), which can ultimately lead to dementia.

  • Conducted by researchers from the Albert Einstein College of Medicine, the study tracked 445 participants with an average age of 76 over a three-year period, focusing on their sleep patterns and cognitive assessments.

  • Interestingly, daytime dysfunction emerged as the only sleep component significantly linked to MCR, prompting questions about whether sleep issues lead to cognitive decline or if early dementia disrupts sleep.

  • Experts recommend improving sleep hygiene, managing stress, and seeking treatment for sleep disorders to help protect cognitive health.

  • In addition to sleep, maintaining a healthy lifestyle through a balanced diet and regular physical activity can further reduce the risk of dementia.

  • The research found that 35.5% of participants suffering from excessive daytime sleepiness and lack of enthusiasm developed MCR, compared to just 6.7% of those without these symptoms.

  • The findings suggest that poor sleepers have a 1.6 times higher risk of developing MCR compared to good sleepers, although this estimate carries some uncertainty.

  • Participants' sleep quality was evaluated using the Pittsburgh Sleep Quality Index, which assessed various factors such as sleep duration, difficulties falling asleep, and daytime dysfunction.

  • The study controlled for multiple factors, including age and depression, reinforcing the connection between excessive sleepiness and cognitive risk.

  • Older adults are advised to aim for 7 to 8 hours of quality sleep each night, as good sleep practices are essential for maintaining cognitive function.

  • Dr. Wendy Troxel emphasized the need to differentiate between sleep problems and depression when considering their impact on MCR.

  • Supported by the National Institute on Aging, the study highlights the importance of addressing sleep disorders, which are often under-diagnosed and under-treated in older populations.

Summary based on 12 sources


Get a daily email with more Science stories

More Stories