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.

Additional study of mechanisms of action and methods for titrating stimulation parameters will be needed to determine if DBS has potential as an AD treatment. 2 key findings →

Design: post-hoc analysis Participants: 42 Evidence: high

Using worldwide health data, researchers project that the number of people living with dementia will nearly triple by 2050, from about 57 million in 2019 to about 153 million. 4 key findings →

Design: modelling Evidence: high

Indirect Costs of Alzheimer's Disease: Unpaid Caregiver Burden and Patient Productivity Loss

✓ Peer-reviewed alzhub usefulness score 50 out of 100. Value in Health 2024-11-19

Conventional cost estimates, which do not consider unpaid caregiver burden and patient productivity loss, significantly underestimate the total burden of AD. 3 key findings →

Design: modelling Evidence: early

Clinical, cognitive, and CSF markers consistent with AD may precede detection of cerebral amyloid beta using amyloid imaging agents such as PiB that primarily label fibrillar amyloid beta plaques. 2 key findings →

Design: case report Evidence: low

Clinical Alzheimer's disease (AD) trials currently face a critical shortfall of thousands of eligible participants, which inflates the duration and cost of the clinical study as well as threatens the scientific merit of promising clinical interventions. 2 key findings →

Design: narrative review Evidence: low

Lecanemab reduced clinical decline by roughly 27% over placebo, with ARIA-E in 12.6% of treated patients;donanemab slowed decline by about 35%, with ARIA-E near 24%. 4 key findings →

Design: narrative review Evidence: high

This narrative review examines the utility of gait digital biomarkers in Parkinson's disease (PD) research and clinical trials across four contexts: disease susceptibility/risk, disease progression, response to exercise, and fall prediction. 1 key finding →

Design: narrative review Evidence: low

Multidomain intervention studies conducted so far appear to have mixed results and substantial variability in target populations, format and intensity of interventions, choice of control conditions, and outcome measures. 2 key findings →

Design: narrative review Evidence: high

Broad clinical syndromes associated with COVID-19 were classified as a cerebrovascular event (defined as an acute ischaemic, haemorrhagic, or thrombotic vascular event involving the brain parenchyma or subarachnoid space), altered mental status (defined as an acute alteration in personality, behaviour, cognition, or consciousness), peripheral neurology (defined as involving nerve roots, peripheral nerves, neuromuscular junction, or muscle), or other (with free text boxes for those not meeting these syndromic presentations). 4 key findings →

Design: case report Participants: 153 Evidence: low

The ability to perform activities of daily living (ADL) function is a multifaceted construct that reflects functionality in different daily life situations. 2 key findings →

Design: narrative review Evidence: high

Predicting Cognitive Impairment and Dementia: A Machine Learning Approach

✓ Peer-reviewed alzhub usefulness score 49 out of 100. Journal of Alzheimer's disease : JAD 2020-01-01

Higher-order factors (e.g., emotional distress, subjective health), which reflect complex interactions between various aspects of an individual, were more important than narrowly defined factors (e.g., clinical and behavioral indicators) when evaluated concurrently to predict cognitive impairment and dementia. 2 key findings →

Design: post-hoc analysis Participants: 9,979 Evidence: low

Cost of care for Alzheimer's disease and related dementias in the United States: 2016 to 2060

✓ Peer-reviewed alzhub usefulness score 48 out of 100. npj Aging 2024-02-08

This study projects that the total cost of caring for Americans with Alzheimer's and related dementias will grow enormously over the coming decades, driven by an aging population. 4 key findings →

Design: modelling Evidence: moderate

Cost-effectiveness of Aducanumab and Donanemab for Early Alzheimer Disease in the US

✓ Peer-reviewed alzhub usefulness score 48 out of 100. JAMA Neurology 2022-03-28

Before donanemab was approved, researchers built a computer model simulating lifetime outcomes for Alzheimer's patients to estimate whether aducanumab and donanemab were reasonably priced for the health benefit they provide. 4 key findings →

Design: modelling Evidence: moderate

This review should serve as a compendium of updated information on VaD and provide guidance in terms of newer diagnostic and potential therapeutic approaches. 2 key findings →

Design: narrative review Evidence: low

Childhood obesity is a growing global health concern, with established links to physical activity, nutrition, and, increasingly, to prenatal and perinatal factors. 1 key finding →

Design: narrative review Evidence: low

Along with rapid global population aging, the age-related cognitive disorders such as mild cognitive impairment (MCI) and dementia have posed a serious threat to public health, health care system, and sustainable economic and societal development of all countries. 1 key finding →

Design: narrative review Evidence: high

This case suggests that mirtazapine may be beneficial in mitigating GLP-1 RA-induced gastrointestinal side effects, thereby improving adherence and therapeutic efficacy. 4 key findings →

Design: case report Evidence: low

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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