AF is associated with greater cognitive decline and increased risk of dementia, independent of ischemic stroke. 5 key findings →
Participants: 515 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
31,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
AF is associated with greater cognitive decline and increased risk of dementia, independent of ischemic stroke. 5 key findings →
Participants: 515 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Seizure incidence is increased in people starting with mild-to-moderate AD. 2 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In this multi-cohort study of older adults without cognitive impairment, we show that WMH and lacunes independently predict increased risk of MCR, after adjusting for key confounders. 5 key findings →
Design: cohort study Participants: 1,772 Evidence: moderate
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White matter findings were significantly associated with age, silent stroke, hypertension, FEV1, and income.
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Commonly used organophosphate and organochlorine pesticides inhibit acetylcholinesterase at synapses in the somatic, autonomic, and central nervous systems and may therefore have lasting effects on the nervous system. 2 key findings →
Evidence: low
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The American Heart Association's LS7 score identified individuals who were vulnerable to multiple chronic nonvascular conditions. 4 key findings →
Participants: 6,506 Evidence: low
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Vascular disease in the brain is prevalent among incident dementia cases. 1 key finding →
Participants: 3,375 Evidence: low
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Hypertension has emerged as a leading cause of age-related cognitive impairment. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Neuropsychiatric symptoms (NPSs) are hallmarks of Alzheimer's disease (AD), causing substantial distress for both people with dementia and their caregivers, and contributing to early institutionalization. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The interplay between midlife vascular risk factors and midlife cognitive function with later life mild cognitive impairment (MCI) and dementia (DEM) is not well understood. 4 key findings →
Participants: 5,995 Evidence: low
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Medicare beneficiaries with a little or a lot of trouble hearing had 18% (95% confidence interval [CI] odds ratio [OR] = 1.10-1.27) and 25% (95% CI OR = 1.07-1.47) increased odds of reporting greater difficulty with understanding Medicare, respectively, compared with those with no hearing trouble. 3 key findings →
Design: cross-sectional Participants: 10,510 Evidence: low
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These data confirm that NPS are risk factors for conversion from CIND to dementia. 1 key finding →
Participants: 230 Evidence: low
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The Alzheimer's Association hosted the second Latinos & Alzheimer's Symposium in May 2021. 2 key findings →
Evidence: low
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Hypertension is a highly prevalent condition which has been established as a risk factor for cardiovascular and cerebrovascular disease. 5 key findings →
Evidence: high
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The prevalence of ICAS in older adults is high, and it could be a target for primary prevention of stroke and dementia in this population. 3 key findings →
Participants: 1,765 Evidence: moderate
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This study provides a potential standardized definition for frailty in community-dwelling older adults and offers concurrent and predictive validity for the definition.
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In the Cardiovascular Health Cognition Study, consumption of fatty fish was associated with a reduced risk of dementia and Alzheimer disease for those without the APOE epsilon4 allele. 2 key findings →
Evidence: low
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Additional (not mutually exclusive) explanations for findings are discussed. 1 key finding →
Participants: 255 Evidence: low
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High white matter grade (WMG) on magnetic resonance imaging (MRI) is a risk factor for dementia, stroke and disability. 5 key findings →
Participants: 3,245 Evidence: low
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Voluntary physical activity and exercise training can favorably influence brain plasticity by facilitating neurogenerative, neuroadaptive, and neuroprotective processes. 1 key finding →
Evidence: low
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Vascular risk factors for Alzheimer disease (AD) and vascular dementia (VaD) have been evaluated; however, few studies have compared risks by dementia subtypes and sex. 1 key finding →
Evidence: moderate
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The association of testosterone concentrations with dementia risk remains uncertain. 4 key findings →
Evidence: low
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The Cardiovascular Health Study is a population-based, longitudinal study designed to evaluate factors related to the onset, course, and risk of coronary heart disease and stroke in adults aged 65 years and older. 4 key findings →
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Use of vitamin E and vitamin C supplements in combination is associated with reduced prevalence and incidence of AD. 4 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The hippocampus is particularly vulnerable to the neurotoxic effects of obesity, diabetes mellitus, hypertension, hypoxic brain injury, obstructive sleep apnoea, bipolar disorder, clinical depression and head trauma. 1 key finding →
Evidence: low
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Free full text links and the Full text may need a subscription label come from Unpaywall, Europe PMC and OpenAlex records of free copies, checked 10 Oct 2026. A study with neither is unknown, not paywalled. Show only studies that are free to read
This is alzhub's own score. It is not an official metric, not an impact factor, and no journal, publisher or ranking body endorses it. We built it so that a reader who is not a scientist can tell a landmark trial from a conference abstract without having to already know the difference. Every point comes from one of 20 components, all of them printed on the study itself, so you can disagree with our arithmetic rather than having to trust the total.
Journals are placed in ordered tiers, never given a numeric impact factor — we could not verify current impact factors from a source we control, and an invented one would be worse than none. Tier 1 is the top-tier general journals (NEJM, The Lancet, JAMA, Nature, Science, Nature Medicine); tier 2 is the leading specialty journals; tier 3 is every other peer-reviewed journal. A separate part scores how much the journal's own papers are cited, which tells the tier-3 journals apart.
Two rules we don't bend. First, we never fill in a missing value: if a record does not state a sample size or a design, that component scores zero, and if we simply have no data for a part, such as a citation count, that part is left out and the study is scored on the parts we could check. The study card says which. Second, anything that is not a peer-reviewed article is capped at 16/100 and carries a warning chip — so a conference abstract or a company press release can never outrank a peer-reviewed paper, no matter how good it looks.
We rank a rigorous null result — a good trial showing that something does not work — above an early positive finding. Someone deciding whether to buy a supplement is served by that, and the rigour is already counted by the design and journal components.
The score is computed from the published data alone and is reproducible: the same file always yields the same numbers.
See the whole rubric drawn out → — four charts covering all 31,780 studies: how the scores are spread and where the cap bites, which of the 20 components the library is strong and weak on, which subjects rest on stronger evidence, and what kinds of study each subject is actually built from.
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 31,780 records, built mostly from automated pulls of Europe PMC (66% of the library) and OpenAlex (16%), plus smaller pulls from PubMed, Crossref and medRxiv. If a study, a drug, or a finding isn't here, that is not evidence it doesn't exist in the literature — it may simply not have been pulled in yet.
1,045 records (3.3% of the library) are not peer-reviewed — 966 of those are preprints posted before any journal review, and the rest are conference abstracts, regulatory notices and reports. Every study card on this page states its status plainly, and the score above is capped for anything that isn't a peer-reviewed article.
See the full, machine-readable breakdown of this library's coverage →
Newest studies, as a dated timeline → Atom feed Where this research is being discussed: events
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