And sometimes, those scientists—like those who conducted University of California San Francisco's latest research on dementia—need five whole years to confirm their hypotheses.
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The first group, Stable Sleep (SS), showed little to no difference in sleep patterns. The second, Declining Nighttime Sleep, experienced worse sleep quality at night and increased daytime napping. The third, “Increasing Sleepiness” (IS), slept significantly more both during the day and at night, showing signs of disrupted circadian rhythms (which means their internal sleep-wake clocks seemed off).
As for what they found? 93 women—or 12.7% of participants—developed dementia over the five years. They were also primarily of the same sleep group: According to the study, women with "increasing sleepiness" and exhaustion had double the risk of developing dementia as those with stable sleep patterns.
Related: This Surprising Symptom May Reveal Alzheimer’s Years Early
Why Does This Matter for Me?
So for the sake of your brain, please prioritize consistent, quality sleep. Especially since, based on on this study, maintaining stable and restful sleep habits may help lower your dementia risk.
Up Next:
Related: This Common Problem May Actually Be an Early Sign of Dementia, According to a Neuroscientist
Sources
Five-Year Changes in 24-Hour Sleep-Wake Activity and Dementia Risk in Oldest Old Women. Neurology. Read More Details
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