27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Vaccination is increasingly acknowledged as an effective preventive measure not only against specific infections, but also for the prevention of cardiovascular disease in high-risk patients. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
At least 45% of dementia and 60% of stroke cases are due to modifiable risk factors and could in part be prevented through healthy behavior. 3 key findings →
Design: cross-sectional Participants: 1,478 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Between Sept 1, 2017, and Feb 28, 2019, 19 403 individuals were invited to participate and 9745 participants (1525 with dementia, 8220 without dementia) were included. 4445 (45·6%) of 9745 participants were male and 5300 (54·4%) were female. 5 key findings →
Design: cohort study Participants: 403 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Mild cognitive impairment (MCI) increases the risk of dementia. 3 key findings →
Design: randomized controlled trial Participants: 84 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
= 0.279). No adverse events were reported. 2 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
LIGHT will provide insight into the implementation and (cost-)effectiveness of a lifestyle intervention for indicated prevention in a memory clinic setting. 2 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
PD may be a modifiable risk factor for AD, and periodontal interventions could contribute to AD prevention and management. 2 key findings →
Design: case-control study Participants: 52 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Cognitive decline and dementia have a deep impact on the health and quality of life of older subjects and their caregivers. 3 key findings →
Design: longitudinal study Evidence: high
Full summary, score breakdown and related studies → Original source
Following a Mediterranean diet high in plant-based foods and fish, low in meat and dairy foods, and with moderate alcohol intake has been shown to promote healthy aging. 1 key finding →
Participants: 832 Evidence: low
Full summary, score breakdown and related studies → Original source
In recent years, there has been a strong interest in physical activity as a primary behavioural prevention strategy against cognitive decline. 1 key finding →
Design: cohort study Evidence: high
Full summary, score breakdown and related studies → Original source
Alzheimer's disease (AD) affects approximately 35 million people worldwide. 2 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Higher cognitive (HR: 0.91/SD, 95%CI: 0.84; 1.00) and brain reserve (HR: 0.88/SD, 95%CI: 0.77; 1.00) were associated with a lower risk of a depressive event after adjustment for baseline depressive symptoms. 5 key findings →
Participants: 105 Evidence: low
Full summary, score breakdown and related studies → Original source
The apolipoprotein E4 (APOE4) allele is associated with an increased risk of Alzheimer disease and a decreased risk of glaucoma, but the underlying mechanisms remain poorly understood. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Published results from the AN1792 trial may have underestimated the effect of vaccine on progression of cerebral atrophy among patients with an antibody response to the vaccine. 3 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
With the aging of the population, the burden of Alzheimer's disease (AD) is rapidly expanding. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Identification of modifiable risk factors provides a crucial approach to the prevention of dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Caffeine stimulates central nervous system on a short term. 3 key findings →
Participants: 1,409 Evidence: low
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It is broadly acknowledged that the onset of dementia in Alzheimer's disease (AD) may be modifiable by the management of risk factors. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
As the number of elderly persons in our country increases, more attention is being given to geriatric healthcare needs and successful ageing is becoming an important topic in medical literature. 2 key findings →
Design: longitudinal study Evidence: moderate
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The incidence and prevalence of dementia are expected to increase several-fold in the coming decades. 3 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Since 1989, four Canadian Consensus Conferences on the Diagnosis and Treatment of Dementia (CCCDTD) have provided evidence-based dementia guidelines for Canadian clinicians and researchers. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Of 3424 articles on potentially modifiable risk factors for dementia, 1719 met our inclusion criteria; 60 were deemed to be of good or fair quality. 2 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The increasing number of older adults has seen a corresponding growth in those affected by neurovascular diseases, including stroke and dementia. 1 key finding →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Cardiovascular diseases are the leading cause of morbidity and mortality worldwide. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This diverse sample of Indigenous (1.65%), Black (11.43%), Hispanic (9.85%), and White (77.07%) older adults had a mean age of 61 (SD = 9.66) and was 52% female. 4 key findings →
Design: longitudinal study Participants: 27,327 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
9 of the 859 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 9. The same 9 appear here every time.
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 27,380 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 27,380 records, built mostly from automated pulls of Europe PMC (60.6% of the library) and OpenAlex (18.6%), 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.
1,032 records (3.8% of the library) are not peer-reviewed — 962 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 →