28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
The age-adjusted death rate for the United States decreased from 845.3 deaths per 100,000 population in 2002 to 831.2 deaths per 100,000 population in 2003. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The age-adjusted death rate in 2002 for the United States decreased from 854.5 deaths per 100,000 population in 2001 to 846.8 in 2002. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The design and application of sensors for monitoring biomolecules in clinical samples is a common goal of the sensing research community. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
The pomegranate, Punica granatum L., is an ancient, mystical, unique fruit borne on a small, long-living tree cultivated throughout the Mediterranean region, as far north as the Himalayas, in Southeast Asia, and in California and Arizona in the United States. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Recent epidemiological evidence indicates that insulin resistance, a proximal cause of Type II diabetes [a non-insulin dependent form of diabetes mellitus (NIDDM)], is associated with an increased relative risk for Alzheimer's disease (AD). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Alzheimer disease will affect increasing numbers of people as baby boomers (persons born between 1946 and 1964) age. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
In Alzheimer's disease, the relatively selective depression of neocortical cholinergic innervation may be closely associated with the neuronal loss in Ch4, which has also been described inthis condition. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
This review summarizes the current knowledge of the biosynthesis of neurosteroids in the human brain, the enzymes mediating these reactions, their localization and the putative effects of neurosteroids. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
In January 2004, the normally picturesque Cache Valley in northern Utah made national headlines with the highest PM2.5 levels in the nation. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Prevalence studies suggest that Alzheimer’s disease (AD) and dementia with Lewy bodies (DLB) are the most common dementing illnesses in the elderly. 1 key finding →
Design: narrative review Evidence: low
Full summary, score breakdown and related studies → Original source
Down syndrome is a common disorder associated with intellectual disability in humans. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Sleep is implicated in cognitive functioning in young adults. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The prefrontal cortex (PFC) mediates cognitive function that is sensitive to disruption by sleep loss, and molecular mechanisms regulating neural dysfunction induced by chronic sleep restriction (CSR), particularly in the PFC, have yet to be completely understood. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Depression is a multicausal disorder and has been associated with the risk to develop cancer, dementia, diabetes, epilepsy and stroke. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Age was similar between groups (p = 0.07). 5 key findings →
Participants: 15 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Higher per-capita food availability was positively associated with dementia outcomes in minimally adjusted models, particularly for the 2005 exposure window, although these associations were substantially attenuated after full covariate adjustment. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Vascular dementia (VaD) is the second commonest subtype of dementia after Alzheimer's disease (AD). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Participants were 1060 Veterans (response rate of 20.14%), mean age of 68.39 (SD=8.52) years, 59.0% Caucasian, 69.2% non‐Hispanic, 95.8% male, 12.0% screened positive for MCI and 15.6% for dementia. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
AD mortality rates significantly increased over time. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Compared with waiver enrollees, PACE enrollees had 31% lower risk of long-term NH admission (p < .001). 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Several existing systematic reviews have summarized the prevalence of dementia in mainland China, Hong Kong and Taiwan. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
's < 0.05). The findings suggest that neighborhood-level social deprivation might influence memory and motor status, primarily through its impact on motor brain health. 1 key finding →
Participants: 22 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Research on Area Deprivation Index (ADI) suggests that the built environment and neighborhood stressors (e.g., violent crime incidents) play a role in later-life cognitive function. 4 key findings →
Participants: 147 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Patient satisfaction outcomes range from 71 - 100% with service intervention outcomes favourably indicating the direct impact of the service, which are unmeasurable to the older adult living with dementia, and include increases in: (i) Confidence - 90%; (ii) Mood - 50% and (iii) open to talking through difficulties encountered - 87%. 3 key findings →
Participants: 67,744 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Participants racialized as Black living in a county with a history of lynching, disproportionate police killings, and disproportionate jail and prison incarceration were 2.8 (95%CI [-0.003, 5.834]) times more likely to have at least one incident of cognitive impairment between 2008-2020 compared to participants racialized as Black living in a county with a history of lynching and disproportionate police killings but not disproportionate incarceration. 3 key findings →
Participants: 185 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 28,180 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 28,180 records, built mostly from automated pulls of Europe PMC (61.7% of the library) and OpenAlex (18.1%), 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.
1,034 records (3.7% 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 →