Get help now — free helplines

You can call any of these for free. You do not need a diagnosis, an appointment, or a crisis to call — questions and plain exhaustion are reasons enough.

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In a medical emergency, call 911. More numbers, and what each line does, on the help page.

Find studies

A note on reading research. One study is rarely the final word.

We try to note the size of a study, whether it was in humans or animals, and how early-stage the finding is. If a summary here doesn't make that clear, treat it with extra caution and check the original source.

Circulating cortisol and cognitive and structural brain measures: The Framingham Heart Study

✓ Peer-reviewed alzhub usefulness score 60 out of 100. Neurology 2018-10-24

We evaluated dementia-free Framingham Heart Study (generation 3) participants (mean age 48.5 years, 46.8% men) who underwent cognitive testing for memory, abstract reasoning, visual perception, attention, and executive function (n = 2,231) and brain MRI (n = 2018) to assess total white matter, lobar gray matter, and white matter hyperintensity volumes and fractional anisotropy (FA) measures. 4 key findings →

Participants: 2,231 Evidence: low

Vascular risk at younger ages most strongly associates with current and future brain volume

✓ Peer-reviewed alzhub usefulness score 60 out of 100. Neurology 2018-09-19

Given the potential therapeutic effect of vascular disease control timing to reduce dementia risk, we investigated the age-related influences of vascular risk factor burden on brain structure throughout the lifespan. 4 key findings →

Design: cross-sectional Participants: 2,887 Evidence: moderate

Cerebral amyloid angiopathy and cognitive function: the HAAS autopsy study

✓ Peer-reviewed alzhub usefulness score 60 out of 100. Neurology 2002-06-01

Starting in 1991, participants were assessed with the Cognitive Abilities Screening Instrument (CASI) and diagnosed with dementia (including subtype) based on published criteria. 4 key findings →

Participants: 44 Evidence: low

Adverse Social Exposome During the Life Course and Vascular Brain Injury

✓ Peer-reviewed alzhub usefulness score 60 out of 100. JAMA Network Open 2025-05-27

The sample included 740 donors (417 female [56.4%]; mean [SD] age at death, 81.5 [10.3] years; mean [SD] VBI score, 0.7 [1.0]; and median life course ADI, 7.08 [IQR, 4.33-9.83]), with residential years spanning 1905 to 2018. 5 key findings →

Design: cohort study Participants: 740 Evidence: moderate

Per 1-m/s increase in ePWV was associated with an adjusted hazard ratio (HR) (95% confidence interval [CI]) of 1.51(1.30-1.75) for dementia and 1.58(1.33-1.89) for Alzheimer's disease (AD), and with an MMSE score decline (adjusted β-coefficient = -0.36; 95% CI = -0.52 to -0.21). 5 key findings →

Design: longitudinal study Participants: 1,857 Evidence: moderate

Among 4712 participants (59% female; mean age, 74 years), 193 ischemic strokes and 769 dementia cases were ascertained over a median follow-up of 8.3 years. 5 key findings →

Design: cohort study Participants: 4,712 Evidence: moderate

The presence of burst suppression, which was unexpectedly high in this medical intensive care unit population, was an independent predictor of increased risk of death at 6 months. 5 key findings →

Design: cohort study Participants: 125 Evidence: moderate

There is increasing recognition of the importance of blood-brain barrier (BBB) disruption in aging, dementia, stroke and multiple sclerosis in addition to more commonly-studied pathologies such as tumors. 1 key finding →

Evidence: low

Elevated midlife blood pressures, and the resulting increased white matter hyperintensities, increase the risk for MCI in a group of community-dwelling older men to at least the same degree as apolipoprotein E4 genotype. 5 key findings →

Design: longitudinal study Evidence: moderate

Homocysteine, white matter hyperintensities, and cognition in healthy elderly people

✓ Peer-reviewed alzhub usefulness score 60 out of 100. Annals of neurology 2003-02-01

Hyperhomocysteinemia is associated with an increased risk of vascular disease, and recent results suggest that it also could increase the risk of dementia. 4 key findings →

Design: cross-sectional Participants: 1,241 Evidence: moderate

Plasma NfL level is a valuable noninvasive biomarker that supplements magnetic resonance imaging scans and possibly reflects the severity of CSVD burden. 3 key findings →

Design: cross-sectional Participants: 496 Evidence: moderate

Cerebrovascular disease and vascular risk factors are associated with Alzheimer's disease, but the evidence for their association with other neurodegenerative disorders is limited. 3 key findings →

Evidence: low

Neuropathologic substrates of ischemic vascular dementia

✓ Peer-reviewed alzhub usefulness score 59 out of 100. Journal of neuropathology and experimental neurology 2000-11-01

Ischemic vascular dementia (IVD) is a relatively uncommon entity, in the course of which multiple ischemic brain lesions result in progressive cognitive and memory impairment. 4 key findings →

Design: longitudinal study Participants: 20 Evidence: moderate

The prevalence and the degree of cerebral white matter lesions increased with age. 2 key findings →

Participants: 1,077 Evidence: low

In this large cohort study of elderly subjects, the degree of dVRS appears independently associated with age, hypertension, volume of white matter hyperintensities, and lacunar infarctions. dVRS should be considered as another MRI marker of cerebral small vessel disease in the elderly with regional variations in their severity. 4 key findings →

Design: cohort study Evidence: moderate

Cerebral white matter lesions are frequently observed on magnetic resonance imaging (MRI) scans in elderly people and are associated with stroke and dementia. 5 key findings →

Design: cross-sectional Participants: 1,625 Evidence: low

From across this tag

9 of the 902 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.

↑ Change the filters

Where “Free full text” comes from

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

How the 0–100 score works — and why some entries are capped

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.

  • Journal tier up to 10 pts
  • Journal's citation record up to 4 pts
  • Study design up to 12 pts
  • Strength of evidence up to 5 pts
  • Peer-review validation up to 10 pts
  • How recent up to 5 pts
  • Sample size up to 4 pts
  • Effect reported up to 3 pts
  • Studied in people up to 3 pts
  • Randomised / blinded up to 2 pts
  • Times cited up to 7 pts
  • Citations per year up to 5 pts
  • Impact for its field and year up to 6 pts
  • Cited by studies here up to 6 pts
  • Still being cited up to 4 pts
  • Senior author's track record up to 4 pts
  • Institution's track record up to 3 pts
  • Multi-centre collaboration up to 3 pts
  • Indexed in PubMed up to 2 pts
  • Free to read up to 2 pts

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.

What this library is — and isn't

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 →

Newest studies, as a dated timeline →    Atom feed