Implicit memory, including priming, can be preserved in aging and dementia despite impairment of explicit memory. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Research
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
46/100
The high burden of cognitive impairment in hemodialysis and chronic kidney disease (CKD) patients has only recently become recognized. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
It is a piece of evidence that cognitive dysfunction, even in early stage of memory decline, may have some bad impact on balance and gait regardless of the effect of musculoskeletal problems. 5 key findings →
Design: post-hoc analysis Evidence: low
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The role of physical exercise in the prevention of Alzheimer's disease (AD) has been widely studied. 4 key findings →
Participants: 20 Evidence: low
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46/100
Understanding preclinical transitions to impairment in cognitive abilities associated with risks for functional difficulty and dementia. 4 key findings →
Evidence: low
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We sought to investigate whether the seropositivity of common infections was associated with cognitive function. 4 key findings →
Participants: 106 Evidence: low
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Little is known about whether cognitive assessments can be completed remotely by older adults at risk for dementia, and there is no consensus on which tool is best. 1 key finding →
Participants: 52 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
A wMD was related to slowed EM declines across sociodemographic populations in a national U.S. sample. 2 key findings →
Design: cross-sectional Participants: 833 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
There were no significant associations in men. 5 key findings →
Participants: 6,028 Evidence: low
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Our results will provide new evidence of the efficacy of an innovative multi-component intervention integrating IVR and telemedicine in SCD individuals. 2 key findings →
Participants: 75 Evidence: high
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Cognitive decline occurred in 38.1% of participants but was not associated with MD adherence. 5 key findings →
Participants: 8,568 Evidence: low
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In years when older adults subjectively reported fewer difficulties with their finances, they objectively performed better at financial tasks and this relationship became stronger over 10 years. 5 key findings →
Participants: 2,802 Evidence: low
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Menopause is associated with sharp declines in concentrations of circulating estrogens. 3 key findings →
Evidence: high
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We anticipate that transcranial alternating current stimulation will be a well-tolerated treatment, with no serious side effects and with considerable short- and long-term cognitive improvements. 2 key findings →
Participants: 75 Evidence: high
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Diabetes mellitus is associated with moderate cognitive deficits and neurophysiological and structural changes in the brain, a condition that may be referred to as diabetic encephalopathy. 1 key finding →
Evidence: low
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Telomere length is a prognostic marker for poststroke cognitive decline, dementia, and death. 1 key finding →
Evidence: moderate
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A high adherence to the Mediterranean diet has been associated with slower cognitive decline, with reduced risk of mild cognitive impairment conversion to Alzheimer's disease and with reduced risk of Alzheimer's disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Impaired ability to conduct daily activities is a diagnostic criterion for dementia and a determinant of healthcare services utilization and caregiver burden. 4 key findings →
Evidence: low
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VTM is emerging as an effective way to provide consultation and care to rural residents who may not have access to specialty services and can be integrated into current clinical settings. 3 key findings →
Participants: 12 Evidence: low
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In South Korea, digital literacy education programs are expected to help its older population participate in online welfare services to increase their social support, self-esteem and well-being. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
45/100
The prevalence of obesity is growing and now includes at least one-third of the adult population in the United States. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We have previously shown that beta-band EEG activity is related to attentional modulation in the visual system of cats and humans. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The hippocampus is one of the most well studied structures in the human brain. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
45/100
Patients with poststroke major depression have a greater severity of cognitive impairment than nondepressed patients even when matched for size and location of stroke lesion. 4 key findings →
Participants: 33 Evidence: low
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Obesity has been related to the incidence of dementia but its impact on cognitive performance in persons without dementia is less clear. 4 key findings →
Evidence: moderate
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From across this tag
10 of the 1,130 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 10. The same 10 appear here every time.
- Socioeconomic disparities and nutritional aging: how food insecurity and financial hardship accelerate health decline in older adults
- Diet, inflammation and the gut microbiome: Mechanisms for obesity-associated cognitive impairment
- Efficacy of Multidomain Intervention Against Physio-cognitive Decline Syndrome: A Cluster-randomized Trial
- Association of neighborhood disadvantage with cognitive function and cortical disorganization in an unimpaired cohort: An exploratory study
- Predictors of cognitive decline and mortality of aged people over a 10-year period
- Effects of Meditation Training and Non-Native Language Training on Cognition in Older Adults: A Secondary Analysis of a Randomized Clinical Trial
- The role of the Mediterranean diet in reducing the risk of cognitive impairement, dementia, and Alzheimer's disease: a meta-analysis
- A comparison of the effects between 2 computerized cognitive training programs, Bettercog and COMCOG, on elderly patients with MCI and mild dementia: A single-blind randomized controlled study
- Lifestyle Modulators of Neuroplasticity: How Physical Activity, Mental Engagement, and Diet Promote Cognitive Health during Aging
- Chronic caffeine consumption prevents obesity-induced cognitive and memory impairments by reducing neuroinflammation and enhancing neuronal activity in the hippocampus
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 →