Dementia is an increasing focus for policymakers, civil organizations and multidisciplinary researchers. 5 key findings →
Design: narrative review Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
32,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
Dementia is an increasing focus for policymakers, civil organizations and multidisciplinary researchers. 5 key findings →
Design: narrative review Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Midlife serum total cholesterol was associated with an increased risk of AD and VaD. 3 key findings →
Participants: 9,844 Evidence: moderate
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Diabetes and pre-diabetes substantially accelerate the progression from MCI to dementia, and anticipate dementia occurrence by more than 3 years in people with MCI. 3 key findings →
Participants: 302 Evidence: moderate
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Family history of dementia was associated with an increased risk of dementia and AD in this very old population, but only among APOE epsilon4 carriers. 5 key findings →
Design: cohort study Participants: 907 Evidence: moderate
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The incidence of stroke and dementia are diverging across the world, rising for those in low- and middle-income countries and falling in those in high-income countries. 3 key findings →
Evidence: low
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Alzheimer's disease (AD) and dementia are a global public health priority, and prevention has been highlighted as a pivotal component in managing the dementia epidemic. 1 key finding →
Evidence: high
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The association between low education and dementia is probably not explained by the unhealthy lifestyles of the less educated compared with higher educated persons. 4 key findings →
Participants: 1,449 Evidence: low
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Individuals with neuropsychiatric, cardiovascular, and sensory impairment/cancer patterns are at increased risk for dementia and APOE ε4, and inflammation may further increase the risk. 3 key findings →
Participants: 2,478 Evidence: low
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Prevalence: It is estimated that each year 38.2% of the EU population suffers from a mental disorder. 5 key findings →
Evidence: low
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Outdoor activity is linked to lower dementia risk, particularly in those living in more accessible GS. 5 key findings →
Design: longitudinal study Participants: 187,724 Evidence: moderate
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Late-life heart diseases increase the subsequent risk of dementia and AD. 1 key finding →
Participants: 2,000 Evidence: low
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Age-related white matter changes (ARWMC) on brain MRI have been associated with cognitive, motor, mood and urinary disturbances. 2 key findings →
Design: longitudinal study Evidence: moderate
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During the 6534 person-years of follow-up (mean, 5.02 years per person), 440 subjects were diagnosed as having dementia, including 333 with Alzheimer disease. 3 key findings →
Participants: 1,301 Evidence: moderate
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Dementia constitutes a worldwide concern. 4 key findings →
Participants: 497,401 Evidence: low
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Hypertension is a major risk factor for many common chronic diseases, such as heart failure, myocardial infarction, stroke, vascular dementia, and chronic kidney disease. 1 key finding →
Evidence: low
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More than 25 million people in the world today are affected by dementia, most suffering from Alzheimer's disease. 5 key findings →
Evidence: low
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Moderate intake of unsaturated fats at midlife is protective, whereas a moderate intake of saturated fats may increase the risk of dementia and AD, especially among ApoE epsilon4 carriers. 1 key finding →
Participants: 117 Evidence: low
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Caffeine has well-known short-term stimulating effects on central nervous system, but the long-term impacts on cognition have been less clear. 3 key findings →
Design: longitudinal study Evidence: moderate
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In the following brief report, we examined gender differences in incidence rates of any dementia, Alzheimer's disease (AD) alone, and non-Alzheimer's dementia alone in 16,926 women and men in the Swedish Twin Registry aged 65+. 2 key findings →
Evidence: low
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The increase in life expectancy has resulted in a high occurrence of dementia and Alzheimer's disease (AD). 5 key findings →
Evidence: high
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In addition to age and stroke severity, heart diseases and dementia before the stroke seem to have an impact on mortality and recurrence after 1 year. 2 key findings →
Participants: 377 Evidence: moderate
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A total of 36 251 participants were included with a median follow-up time of 13.9 years. 5 key findings →
Participants: 251 Evidence: low
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Among 934,792 individuals, 81,731 developed dementia over a mean follow-up of 11·6 years. 1 key finding →
Participants: 934,792 Evidence: low
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The incidence of dementia and cardiovascular disease (CVD) increases with age. 5 key findings →
Evidence: low
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Multimorbidity-the co-occurrence of two or more chronic health conditions-affects > 86% of people with dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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 32,180 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 32,180 records, built mostly from automated pulls of Europe PMC (66.5% of the library) and OpenAlex (15.8%), 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 (3.2% 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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