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.

Each study has a usefulness score out of 100 (rubric version 4.0). Tap a score to see what makes it up.

Highest usefulness score first. Studies without a score come last.

  1. Probiotic intervention benefits multiple neural behaviors in older adults with mild cognitive impairment

    ✓ Peer-reviewed alzhub usefulness score 70 out of 100. Geriatric nursing (New York, N.Y.) 2023-03-28 Disease mechanisms

    Probiotic supplements were shown to improve cognitive function in Alzheimer's disease (AD) patients.

  2. Gut Microbiota Modification via Glucagon-like Peptide-1 with Beneficial Neuroprotective Effects

    ✓ Peer-reviewed alzhub usefulness score 70 out of 100. Middle East journal of digestive diseases 2022-04-30 Drug development

    The results showed that intestinal expression of GLP-1 1 could reduce the intestinal pathogenic genus such as Enterobacteriaceae and was obviously associated with a greater number of beneficial genera such as Lactobacillus and Akkermansia.

  3. Long Chain Omega-3 Fatty Acid Intervention in Ageing Adults at Risk of Dementia Following Repeated Head Trauma. Low-level Support or an Opportunity for an Unanswered Question?

    ✓ Peer-reviewed alzhub usefulness score 70 out of 100. The journal of prevention of Alzheimer's disease 2021 Prevention and risk

    Emerging evidence of brain injury on risk of neurodegenerative diseases such as Alzheimer's disease (AD) and chronic traumatic encephalopathy (CTE) have resulted in interest in therapeutic potential of omega-3 fatty acids (n-3FA).

  4. Resveratrol regulates neuro-inflammation and induces adaptive immunity in Alzheimer's disease

    ✓ Peer-reviewed alzhub usefulness score 70 out of 100. Journal of neuroinflammation 2017-01-03 Cognitive tests and assessment

    These data suggest that resveratrol decreases CSF MMP9, modulates neuro-inflammation, and induces adaptive immunity.

  5. Supplementation with DHA and the psychological functioning of young adults

    ✓ Peer-reviewed alzhub usefulness score 70 out of 100. The British journal of nutrition 2012-04-13 Clinical trials

    The grey matter of the brain contains high levels of the essential nutrient DHA.

  6. Activation of Glucagon-Like Peptide-1 Receptor Ameliorates Cognitive Decline in Type 2 Diabetes Mellitus Through a Metabolism-Independent Pathway

    ✓ Peer-reviewed alzhub usefulness score 69 out of 100. Journal of the American Heart Association 2021-07-10 Drug development

    We concluded that liraglutide improves cognitive decline in patients with type 2 diabetes mellitus.

  7. Inflammatory bowel disease is associated with higher dementia risk: a nationwide longitudinal study

    ✓ Peer-reviewed alzhub usefulness score 69 out of 100. Gut 2020-06-23 Disease mechanisms

    This population-based cohort study demonstrates significant association between IBD and subsequent development of dementia.

  8. Gut microbiota, cognitive frailty and dementia in older individuals: a systematic review

    ✓ Peer-reviewed alzhub usefulness score 69 out of 100. Clinical interventions in aging 2018-08-29 Disease mechanisms

    Cognitive frailty, defined as the coexistence of mild cognitive impairment symptoms and physical frailty phenotype in older persons, is increasingly considered the main geriatric condition predisposing to dementia.

  9. Effects of metformin exposure on neurodegenerative diseases in elderly patients with type 2 diabetes mellitus

    ✓ Peer-reviewed alzhub usefulness score 69 out of 100. Progress in neuro-psychopharmacology & biological psychiatry 2017-06-03 Costs and economics

    Epidemiological evidence reveals that patients with type 2 diabetes mellitus (T2DM) have an increased risk of neurodegenerative diseases (NDs), including dementia and Parkinson's disease (PD).

  10. Serum IgG antibody levels to periodontal microbiota are associated with incident Alzheimer disease

    ✓ Peer-reviewed alzhub usefulness score 69 out of 100. PloS one 2014-12-18 Disease mechanisms

    Serum IgG levels to common periodontal microbiota are associated with risk for developing incident AD.

  11. Pathogenetic pathways of cognitive dysfunction and dementia in metabolic syndrome

    ✓ Peer-reviewed alzhub usefulness score 68 out of 100. Life sciences 2019-10-10 Risk factors

    The prevalence of dementia worldwide is growing at an alarming rate.

  12. Omega-3 Fatty Acids and Neurodegenerative Diseases: New Evidence in Clinical Trials

    ✓ Peer-reviewed alzhub usefulness score 68 out of 100. International journal of molecular sciences 2019-08-30 Prevention and risk

    A nutritional approach could be a promising strategy to prevent or slow the progression of neurodegenerative diseases such as Parkinson's and Alzheimer's disease, since there is no effective therapy for these diseases so far.

  13. A Pilot Study of Exenatide Actions in Alzheimer's Disease

    ✓ Peer-reviewed alzhub usefulness score 67 out of 100. Current Alzheimer research 2019-01-01 Drug development

    The positive finding of lower EV Aβ42 supports emerging evidence that plasma neuronal EVs provide an effective platform for demonstrating biomarker responses in clinical trials in AD.

  14. Gut Microbiome Alterations in Mild Cognitive Impairment: Findings from the ALBION Greek Cohort

    ✓ Peer-reviewed alzhub usefulness score 66 out of 100. Microorganisms 2025-09-10 Disease mechanisms

    Emerging evidence suggests a potential role of gut dysbiosis in neurodegenerative disorders and, in particular, Alzheimer's disease (AD) pathology and cognitive decline.

  15. Relationship Between Plasma Neurofilament Light Chain, Gut Microbiota, and Dementia: A Cross-Sectional Study

    ✓ Peer-reviewed alzhub usefulness score 66 out of 100. Journal of Alzheimer's disease : JAD 2022 Biomarkers

    We analyzed 128 participants (women: 59%, mean age: 74 years).

  16. Liraglutide improves memory in obese patients with prediabetes or early type 2 diabetes: a randomized, controlled study

    ✓ Peer-reviewed alzhub usefulness score 66 out of 100. International journal of obesity (2005) 2020-01-21 Drug development

    Liraglutide might slow down memory function decline in diabetic patients in early, and possibly preclinical stages of the disease.

  17. GLP-1's role in neuroprotection: a systematic review

    ✓ Peer-reviewed alzhub usefulness score 66 out of 100. Brain injury 2019-04-02 Drug development

    Recent literature shows that GLP-1 and its agonists, DPP-4 inhibitors and combined GLP-1/GIP molecules are effective in partially or fully reversing the effects of neurotoxic compounds, neurovascular complications of diabetes, neuropathological changes related with Alzheimer's disease, Parkinson's disease or vascular occlusion.

  18. Neural correlates of liraglutide effects in persons at risk for Alzheimer's disease

    ✓ Peer-reviewed alzhub usefulness score 66 out of 100. Behavioural brain research 2018-08-09 Drug development

    Insulin resistance (IR) is a metabolic state preceding development of type 2 diabetes (DM2), cardiovascular disease, and neurodegenerative disorders, including Alzheimer's Disease (AD).

  19. Mediterranean diet and cognitive health: an update of available knowledge

    ✓ Peer-reviewed alzhub usefulness score 66 out of 100. Current opinion in clinical nutrition and metabolic care 2015-01 Prevention and risk

    RECENT FINDINGS: Based on available epidemiological studies, two meta-analyses published in 2013 have underlined a protective effect of a greater MeDi adherence on cognitive health, including a reduced risk of Alzheimer's disease and cognitive impairment.

  20. Pharmacologic Therapy for Type 2 Diabetes Mellitus

    ✓ Peer-reviewed alzhub usefulness score 66 out of 100. Annals of Internal Medicine 2000-07-04 Drug development

    DeFronzo Metrics Cited ByDiscovery of α-Glucosidase Inhibitors from Marine Microorganisms: Optimization of Culture Conditions and Medium CompositionBurdock fructooligosaccharide as an α-glucosidase inhibitor and its antidiabetic effect on high-fat diet and streptozotocin-induced diabetic miceThe antioxidant and antidiabetic potentials of polyphenolic-rich extracts of Cyperus rotundus (Linn.)From Pharmacogenetics to Gene Expression: Implications for Precision Medicine in DiabetesA narrative review of current trends in liraglutide: insights into the unmet needs in management of type 2 diabetes and obesitySynthesis, antidiabetic, antioxidant and anti-inflammatory activities of novel hydroxytriazenes based on sulpha drugsRNA-Seq Analysis of the Liver Transcriptome Reveals the Networks Regulating Treatment of Sitagliptin Phosphate plus Fuzhujiangtang Granule in the Zucker Diabetic Fatty RatsEverestmab, a novel long-acting GLP-1/anti GLP-1R nanobody fusion protein, exerts potent anti-diabetic effectsSPION‐Decorated Exosome Delivered BAY55‐9837 Targeting the Pancreas through Magnetism to Improve the Blood GLC ResponseA novel self-sufficient biocatalyst based on transaminase and pyridoxal 5′-phosphate covalent co-immobilization and its application in continuous biosynthesis of sitagliptinShared Pathological Mechanisms Between Diabetes Mellitus and Neurodegenerative DiseasesEffects of Lifestyle Modification and Anti-diabetic Medicine on Prediabetes Progress: A Systematic Review and Meta-AnalysisGlibenclamide Reduces Primary Human Monocyte Functions Against Tuberculosis Infection by Enhancing M2 PolarizationNaringin enhances reverse cholesterol transport in high fat/low streptozocin induced diabetic ratsA novel strategy to prepare the precursor peptide of liraglutideImpact of metformin on patients with advanced head and neck cancer undergoing concurrent chemoradiotherapyEffects of Different Doses of Metformin on Serum Fatty Acid Composition in Type 2 Diabetic RatsInsulin resistance and cognitive performance in type 2 diabetes — The Maastricht studyDesign and synthesis of novel thiazolidine-2,4-diones as hypoglycemic agentsMetformin in Amnestic Mild Cognitive Impairment: Results of a Pilot Randomized Placebo Controlled Clinical TrialMetformin and lifestyle modification in polycystic ovary syndrome: systematic review and meta-analysisGlibenclamide reduces pro-inflammatory cytokine production by neutrophils of diabetes patients in response to bacterial infectionNa + /H

  21. The complex relationship between gut microbiota and Alzheimer's disease: A systematic review

    ✓ Peer-reviewed alzhub usefulness score 64 out of 100. Ageing research reviews 2024-12-09 Disease mechanisms

    Alzheimer's disease (AD) is a progressive, degenerative disorder of the central nervous system.

  22. Systemic and central nervous system metabolic alterations in Alzheimer's disease

    ✓ Peer-reviewed alzhub usefulness score 64 out of 100. Alzheimer's research & therapy 2019-11-28 Biomarkers

    The observed metabolic alterations were associated with core pathological processes of AD to investigate their relation with amyloid pathology and tau-related neurodegeneration.

  23. Coffee and its consumption: benefits and risks

    ✓ Peer-reviewed alzhub usefulness score 64 out of 100. Critical reviews in food science and nutrition 2011-04-01 Risk factors

    Coffee is the leading worldwide beverage after water and its trade exceeds US $10 billion worldwide.

  24. Intranasal insulin improves memory in humans

    ✓ Peer-reviewed alzhub usefulness score 64 out of 100. Psychoneuroendocrinology 2004-11-01 Tau biomarkers

    Previous studies have suggested an acutely improving effect of insulin on memory function.

  25. Type 1 diabetes is associated with higher plasma levels of biomarkers of neurodegeneration and neuroinflammation

    ✓ Peer-reviewed alzhub usefulness score 63 out of 100. Frontiers in immunology 2026-07-22 Biomarkers

    136 adults with T1D (n=90, age 52 years, 58% female, average HbA1c 7.7%) and without T1D (n=46, age 53 years, 57% female, average HbA1c 5.4%) were included.

Other topics