Knowledge Tree
dementia
Facts (71)
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Improvement in sleep duration was associated with higher cognitive ... aging-us.com Oct 20, 2020 15 facts
referenceBenito-León et al. (2009) conducted a prospective population-based study on the relationship between total daily sleep duration and the risk of dementia, published in the European Journal of Neurology.
claimThe three most important prospective studies regarding interventions to reduce the risk of cognitive decline or dementia did not include sleep duration as a factor.
claimShort or long sleep duration and the disruption of the circadian rhythm are risk factors for neurodegenerative diseases, including dementia.
measurementIn 2019, Medicare and Medicaid payments for patients with dementia were 2 to 22 times greater than payments for patients without dementia.
referenceA 2011 study by Yaffe et al. found that sleep-disordered breathing and hypoxia are associated with an increased risk of mild cognitive impairment and dementia in older women.
claimThe Chinese Longitudinal Healthy Longevity Survey reported that a change from long sleep duration (LSD) to moderate sleep duration (MSD) could decrease the risk of dementia.
claimDementia causes irreversible effects on quality of life and creates a strain on global health, making the identification of modifiable risk factors for lower cognitive function imperative for prevention or postponement.
claimThe Alzheimer’s Association has not yet mentioned sleep in their suggested prevention tips for cognitive decline or dementia.
claimThe study challenged previous ideas that increased or decreased sleep duration would lead to lower cognition, noting that a total of nine studies have previously examined the effect of changes in sleep duration on cognitive function or the risk of dementia.
claimFive studies have linked increased sleep duration to lower cognition or a higher risk of dementia.
referencePrevious studies limited by sample sizes or methodology concluded that either increased or decreased sleep duration is associated with lower cognitive function or a higher risk of dementia.
measurementApproximately 5% of older adults have dementia.
measurementIn 2019, 16 million Americans provided 18.6 billion hours of care for people with dementia, which was valued at $244 billion (US).
measurementIn a 2018 study by Y. Lu involving 7,422 Japanese participants aged 65 or older from the Ohsaki Cohort 2006 study, a change to long sleep duration (LSD) was associated with a higher risk of incident dementia with an odds ratio (OR) of 1.13 to 1.72.
referenceKivipelto et al. (2018) published a review in Nature Reviews Neurology on lifestyle interventions to prevent cognitive impairment, dementia, and Alzheimer's disease.
Extent and Health Consequences of Chronic Sleep Loss and ... - NCBI ncbi.nlm.nih.gov 8 facts
claimIndividuals with dementia, including Alzheimer’s disease, Parkinson’s disease, dementia with Lewy bodies, Huntington’s disease, and Creutzfeldt-Jakob disease, commonly experience sleep abnormalities.
claimSleep impairments in individuals with dementia usually worsen as the disease progresses.
referenceA 1985 study by Reynolds et al. published in Biological Psychiatry examined EEG sleep patterns in elderly subjects categorized as depressed, demented, or healthy.
claimElderly subjects, both with and without dementia, exhibit changes in sleep and waking EEGs, according to a 1982 study by Prinz et al. published in the Journal of the American Geriatrics Society.
claimCommon patterns of sleep impairment in dementia include more fragmented sleep, increased awakenings, less total time asleep, and potentially decreased REM sleep.
procedureTreatment for sleep disorders in individuals with dementia involves addressing the sleep disorder symptoms while managing the underlying medical or psychiatric disorder.
referenceArnulf I, Mabrouk T, Mohamed K, Konofal E, Derenne JP, and Couratier P described a new parasomnia involving stages 1-2 non-rapid eye movement sleep behavior disorder associated with dementia, published in Movement Disorders in 2005.
claimTreating sleep disorders in individuals with Alzheimer’s disease is not effective in reducing the dementia associated with the disease.
U shaped association between sleep duration and long ... nature.com by F Feng · 2025 8 facts
referenceShi, L. et al. authored the study 'Sleep disturbances increase the risk of dementia: A systematic review and meta-analysis', published in Sleep Medicine Reviews in 2018.
measurementThe Global Burden of Disease Study 2019 estimated that 57.4 million people worldwide were living with dementia in 2019, with projections estimating an increase to 152.8 million by 2050.
referenceCavaillès, C. et al. authored the study 'Multidimensional sleep profiles via machine learning and risk of dementia and cardiovascular disease', published as a preprint on medRxiv in 2024.
referenceSindi et al. (2018) conducted a multicenter study identifying a link between sleep disturbances and the risk of developing dementia.
claimMild cognitive impairment (MCI) is a reversible state between normal cognitive function and dementia that may revert to normal cognition.
claimIdentifying modifiable risk factors is paramount for dementia prevention strategies because there are currently no effective disease-modifying treatments for dementia.
referenceSabia, S. et al. authored the study 'Association of sleep duration in middle and old age with incidence of dementia', published in Nature Communications in 2021.
referenceSleep problems are associated with an increased risk of all-cause cognitive decline or dementia, according to a systematic review and meta-analysis by Xu et al. (2020).
How Lack of Sleep Impacts Cognitive Performance and Focus sleepfoundation.org Jul 29, 2025 5 facts
claimPeople with sleep apnea have a higher risk of developing dementia.
claimSleep patterns impact the risk of cognitive decline and dementia.
claimInsufficient sleep and sleep fragmentation are associated with cognitive decline and dementia, and in people already diagnosed with dementia, poor sleep is linked to a worse disease prognosis.
claimOver the long-term, poor sleep may increase the risk of cognitive decline and dementia.
claimResearchers and public health experts increasingly view good sleep as a potential preventative measure against dementia and Alzheimer’s disease.
Impact of sleep duration on executive function and brain structure nature.com Mar 3, 2022 5 facts
claimResearchers have investigated sleep duration as a potential risk factor for dementia.
measurementA longitudinal analysis of a 7,959-person sub-cohort of the Whitehall study found that sleeping six hours or less is associated with a higher risk of dementia compared to sleeping seven hours, while sleeping eight hours or more was not associated with higher risk.
claimHenry et al. investigated the relationship between sleep duration, cognition, and dementia using a Mendelian randomization study.
referenceA Mendelian randomization study published in the International Journal of Epidemiology in 2019 examined the relationship between sleep duration, cognition, and dementia.
claimExtremes of sleep quantity and disruption of sleep characteristics are associated with poor memory and an increased risk of dementia.
Sleep Deprivation Can Lead to a Plethora of Diseases bergerhenryent.com Jan 26, 2019 3 facts
claimResearchers concluded that improving sleep quality or duration could help the brain fight the onset of dementia and Alzheimer’s disease.
claimSleep helps the brain clear out waste products that might accumulate and cause cognitive decline, potentially warding off Alzheimer’s disease and other types of dementia.
measurementOne in three seniors dies from Alzheimer’s disease or another type of dementia.
Sleep Across the Lifespan: A Neurobehavioral Perspective link.springer.com Feb 5, 2025 3 facts
referenceFigueiro MG, Sahin L, Kalsher M, Plitnick B, and Rea MS published a study in 2020 titled 'All-day exposure to circadian-effective light improves sleep, Mood, and Behavior in persons with Dementia' in the Journal of Alzheimer’s Disease Reports.
referenceLee SY, Hung L, Chaudhury H, and Morelli A published a longitudinal study in 2021 titled 'Effects of Physical Environment on Quality of Life among residents with dementia in Long-Term Care Facilities in Canada and Sweden: a longitudinal study in a large-scale institutional setting versus a small-scale homelike setting' in the journal Architectural Research.
referenceKoren T, Fisher E, Webster L, Livingston G, and Rapaport P conducted a systematic review and meta-analysis on the prevalence of sleep disturbances in people with dementia living in the community, published in Ageing Research Reviews in 2023.
Sleep and Brain Health: How Good Sleep Protects Memory neuropsychologyllc.com 3 facts
measurementPeople in their 50s and 60s who slept six hours or less per night were 30% more likely to be diagnosed with dementia in subsequent decades compared to those who slept seven hours per night.
claimPoor sleep contributes to cognitive decline, including conditions such as Alzheimer’s disease and other dementias.
claimThe accumulation of waste products like beta-amyloid and tau in the brain over years and decades is thought to contribute to memory loss and cognitive decline associated with dementia.
Sleep Deprivation, Sleep Disorders, and Chronic Disease - CDC cdc.gov Aug 31, 2023 3 facts
claimSleep deprivation is an acquired risk factor in the 21st century linked to adverse cardiometabolic health, cognitive health, and an increased risk of dementia among older adults.
claimEmerging evidence links sleep deprivation to adverse cardiometabolic and cognitive health, as well as an increased risk of dementia among older adults, establishing it as an important acquired risk factor in the 21st century.
claimSleep deprivation is linked to adverse cardiometabolic health, cognitive health, and an increased risk of dementia among older adults.
How Lack of Sleep Impacts Cognitive Performance and Focus brain.health Mar 13, 2023 2 facts
Experts recommend 7-8 hours of sleep for better brain health sph.unc.edu Jan 31, 2017 2 facts
claimThe Global Council on Brain Health (GCBH) consensus statement asserts that people with chronic inadequate sleep are at higher risk for and experience more severe health problems, including dementia, depression, heart disease, obesity, and cancer.
claimHealth experts advise caution regarding the use of melatonin supplements in patients with dementia.
Why Sleep Is Important for Brain Health - American Brain Foundation americanbrainfoundation.org Mar 16, 2022 2 facts
claimREM sleep behavior disorder (RBD) can be considered a prodromal syndrome, or a sign that may precede Parkinson’s disease, and individuals with RBD are more likely to develop cognitive problems or dementia.
claimSleep disturbances are correlated with numerous neurological diseases, including stroke, cognitive aging, dementia, and Parkinson’s disease.
How sleep deprivation can harm your health - Harvard Health health.harvard.edu Jul 22, 2025 2 facts
claimChronic sleep deprivation can damage nearly every system in the human body, including contributing to diabetes, high blood pressure, heart disease, mental illness, dementia, and weight gain.
measurementA review of 18 studies involving nearly 250,000 people followed for an average of 9.5 years identified a link between lack of sleep and an increased risk of developing dementia.
Ancient Roots of Today's Emerging Renaissance in ... link.springer.com 1 fact
claimNew studies are examining the use of psychedelics as potential treatments for eating disorders, migraine headaches, cluster headaches, and early dementia, according to Siegel et al. (2021).
Chronic Inflammation - StatPearls - NCBI Bookshelf ncbi.nlm.nih.gov 1 fact
claimIn older adults, chronic low-level inflammation is linked to cognitive decline and dementia associated with Alzheimer's disease.
Pharmacological Uses of New Bioactive Compounds from Medicinal ... ouci.dntb.gov.ua 1 fact
referenceRingman and Cummings (2006) published a review on current and emerging pharmacological treatment options for dementia in the journal Behavioural Neurology.
A Double-Edged Sword: Inflammation and Your Health - Cedars-Sinai cedars-sinai.org Feb 12, 2021 1 fact
claimChronic, low-grade inflammation is linked to the development of diseases including cancer, heart disease, dementia, arthritis, and depression.
Medicinal plants and human health: a comprehensive review of ... link.springer.com Nov 5, 2025 1 fact
claimGinkgo biloba extracts are undergoing extensive evaluation in large-scale trials for dementia and cognitive decline.
Should you be tested for inflammation? health.harvard.edu Mar 29, 2022 1 fact
claimStamping out inflammation would not eliminate cardiovascular disease, cancer, dementia, or aging.
Associations Between Sleep Duration and Cognitive Function ... humanfactors.jmir.org 1 fact
referenceThe study 'Projections of care for older people with dementia in England: 2015 to 2040' was published in Age and Ageing on February 27, 2020.
Bridging the Gap Between LLMs and Evolving Medical Knowledge arxiv.org Jun 29, 2025 1 fact
claimDementia typically presents as a gradual decline in cognitive function.
The Effect of Insomnia on Brain Health - American Brain Foundation americanbrainfoundation.org Sep 17, 2025 1 fact
claimAlzheimer’s disease causes amyloid beta (Aβ) proteins to build up and clump into amyloid plaques, which can accumulate and destroy neurons, leading to dementia symptoms like impaired memory and reduced cognitive abilities.
Sleep duration, chronotype, health and lifestyle factors ... bmjpublichealth.bmj.com 1 fact
claimSleep impairment in elderly people is linked to an increased risk of cognitive decline and dementia.