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.

  • Alzheimer's Association 24/7 Helpline 800-272-3900 24 hours a day, 365 days a year Free, confidential support and information for people with dementia, caregivers, families and the public. Master's-level clinicians. Also Spanish.
  • 988 Suicide & Crisis Lifeline 988 24/7 Call or text 988, or chat at 988lifeline.org. For anyone in emotional distress or a mental-health crisis, including caregivers.
  • Alzheimer's Foundation of America (AFA) Helpline 866-232-8484 9:00 am - 9:00 pm ET, seven days a week Licensed social workers providing support, info and referrals. Also text message and web chat. Text: 646-586-5283

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.

Buse, MD PhDDiabetes Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina (J.B.B.), and the LEADER Publication Committee on behalf of the LEADER Trial Investigators*Author, Article, and Disclosure Informationhttps://doi.org/10.7326/M18-1569 SectionsSupplemental MaterialAboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail Background: Comorbidities and complications associated with type 2 diabetes mellitus (T2DM) increase with age, making treatment of elderly persons with this condition challenging. 1 key finding →

Design: randomized controlled trial Evidence: high

This observational study analyzed electronic health records of about 1.09 million US patients with type 2 diabetes and found that those prescribed semaglutide (a GLP-1 diabetes/weight-loss drug) were substantially less likely to receive a first-time Alzheimer's diagnosis over 3 years than those on other diabetes medications. 3 key findings →

Design: cohort Participants: 1,090,000 Evidence: preliminary

Between April 30, 2020, and May 9, 2022, we randomly allocated 204 participants (109 [53%] women and 95 [47%] men) to the intervention group and 98 (60 [61%] women and 38 [39%] men) to the control group. 218 (72%) participants at 6 months and 178 (59%) at 12 months provided cost data. 2 key findings →

Design: RCT Participants: 302 Evidence: high

Biomarker pattern of ARIA-E participants in phase 3 randomized clinical trials with bapineuzumab

✓ Peer-reviewed alzhub usefulness score 68 out of 100. Neurology 2018-02-02

Baseline biomarkers largely do not predict risk for developing ARIA-E. ARIA-E was associated with significant longitudinal changes in several biomarkers, with larger reductions in amyloid PET and CSF p-tau and t-tau concentrations, and paradoxically greater hippocampal volume reduction and ventricular enlargement, suggesting that ARIA-E in bapineuzumab-treated cases may be related to increased Aβ efflux from the brain and affecting downstream pathogenic processes. 4 key findings →

Design: longitudinal study Participants: 1,512 Evidence: moderate

Cerebrospinal fluid biomarkers may be useful to monitor the effects of novel disease-modifying anti-Aβ drugs in clinical trials. 3 key findings →

Design: clinical trial Participants: 19 Evidence: high

Diet intervention and cerebrospinal fluid biomarkers in amnestic mild cognitive impairment

✓ Peer-reviewed alzhub usefulness score 68 out of 100. Archives of neurology 2011-06-01

Our results suggest that diet may be a powerful environmental factor that modulates Alzheimer disease risk through its effects on central nervous system concentrations of Aβ42, lipoproteins, oxidative stress, and insulin. 2 key findings →

Design: randomized controlled trial Participants: 29 Evidence: high

In this randomized clinical trial, BIIB080 reduced tau biomarkers, including CSF t-tau, CSF p-tau181, and tau PET, which is associated with cognitive decline, in participants with mild AD. 5 key findings →

Design: clinical trial Participants: 13 Evidence: high

We were unable to detect a difference in HRQOL for screening for ADRD among older adults. 3 key findings →

Design: randomized controlled trial Participants: 2,008 Evidence: high

These findings suggest that benzoate treatment may improve cognitive function in women with later-phase dementia. 5 key findings →

Participants: 97 Evidence: high

This study demonstrated statistically significant differences between physostigmine and placebo on both a performance-based cognitive functioning instrument and a clinician's global evaluation. 5 key findings →

Participants: 366 Evidence: high

Risks and benefits of unapproved disease-modifying treatments for neurodegenerative disease

✓ Peer-reviewed alzhub usefulness score 68 out of 100. Neurology 2019-12-02

Assignment to active treatment was not beneficial for any of the indications examined and may have been slightly disadvantageous for patients with Alzheimer disease. 5 key findings →

Design: systematic review Participants: 39,875 Evidence: high

Baseline assessments were conducted on 128 participants. 3 key findings →

Design: randomized controlled trial Participants: 125 Evidence: high

Of 47 participants enrolled (mean age = 73.8 years; 43% female), 1 dropped out before treatment initiation and 6 before completion, including 2 in the nicotinamide and 4 in the placebo arm. 4 key findings →

Participants: 47 Evidence: high

Higher tau levels are associated with the fastest decline in everyday functioning in the presence of elevated amyloid, and those accumulating more tau show a faster decline in everyday functioning. 3 key findings →

Design: randomized controlled trial Participants: 434 Evidence: high

Association Between Lifestyle at Different Life Periods and Brain Integrity in Older Adults

✓ Peer-reviewed alzhub usefulness score 68 out of 100. Neurology 2025-02-07

In 135 older adults (mean age = 69.3 years; women = 61.5%), no associations were found within AD-signature regions (all p > 0.25). 3 key findings →

Design: randomized controlled trial Evidence: high

In elderly hypertensive patients, a slightly more effective blood pressure reduction during candesartan-based therapy, compared with control therapy, was associated with a modest, statistically non-significant, reduction in major cardiovascular events and with a marked reduction in non-fatal stroke. 4 key findings →

Design: open-label trial Participants: 4,964 Evidence: high

In the seven longitudinal studies assessing the effect of antihypertensive medication on cognitive impairment or cognitive decline, antihypertensive drugs appeared to be beneficial. 4 key findings →

Design: systematic review Participants: 1,346,176 Evidence: high

Pre- and postoperative orthogeriatric care given in an acute geriatric ward was not effective in reducing delirium or long-term cognitive impairment in patients with hip fracture. 5 key findings →

Design: randomized controlled trial Participants: 329 Evidence: high

The trial was completed by 67% of patients in the placebo group and 73% of patients in the risperidone group. 3 key findings →

Participants: 345 Evidence: high

A dementia guideline-based disease management program led to substantial improvements in quality of care for patients with dementia. 1 key finding →

Participants: 408 Evidence: high

Purpose of the study During aging, musical activities can help maintain physical and mental health and cognitive abilities, but their rehabilitative use has not been systematically explored in persons with dementia (PWDs). 1 key finding →

Participants: 30 Evidence: high

IER is as effective as CER with regard to weight loss, insulin sensitivity and other health biomarkers, and may be offered as an alternative equivalent to CER for weight loss and reducing disease risk. 1 key finding →

Evidence: high

From across this tag

10 of the 1,875 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.

↑ 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 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.

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 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 →

Newest studies, as a dated timeline →    Atom feed