Does sleep impact dementia risk? A new study suggests that sleeping less than 5 hours per night is associated with a two-fold greater risk for dementia when compared to sleeping 7-8 hours per night. Additionally, taking longer than 30 minutes to fall asleep most nights of the week is associated with a 45% greater risk for dementia.
The study included survey data from 2,812 individuals with the average age being 76.9, 60% of respondents being female and 72% respondents identifying as white.
Aging. 2021.
doi.org/10.18632/aging.202591
