Alzheimer's & Dementia

Alzheimer’s disease is an irreversible, progressive brain disorder that slowly destroys memory and thinking skills. Alzheimer’s is the most common cause of dementia among older adults. Dementia is the loss of cognitive functioning—thinking, remembering, and reasoning—and behavioral abilities to such an extent that it interferes with a person’s daily life and activities.

Alzheimer’s Disease | Definition, Causes, Diagnosis & Treatment

Alzheimer’s Disease (AD) is the most common form of dementia worldwide (60-70% of all dementia cases) and is a progressive neurodegenerative disorder.

Stress and Alzheimer's Disease

Pollution and Alzheimer's

Alzheimer's Disease Prevention

Bright Light Therapy and Dementia

What are Amyloid Plaques?

Alzheimer's Disease Symptoms

Diet and Alzheimer's Disease

Dementia Treatment

Amyloid Cascade Hypothesis

Dementia Diagnosis

Integrated PET/MR for Alzheimer’s Disease

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Childhood Dementia Signs and Symptoms

Is Alzheimer's Disease Transmissible?

Migraines and Dementia

Aromatherapy for Dementia

Alzheimer’s Disease and Gingko Biloba

Mythbusting: Misconceptions in Dementia

Childhood Dementia Causes

Dancing Through Dementia: How Movement Aids Memory and Mood

Alzheimer's Disease Treatments

Alzheimer's and Veganism

Can Statins Protect Against Alzheimer’s Disease?

Inflammation and Alzheimer's Disease

Omega-3 and Alzheimer’s Disease

Stem Cell Therapy for Alzheimer's

Alzheimer’s Disease and Calcium Supplements

Alzheimer's Disease Epidemiology

Alzheimer's Disease and Sleep Disruption

Does Type 2 Diabetes Increase the Risk of Alzheimer’s Disease?

Can Happiness Protect You from Dementia?

Types of Alzheimer's Disease

Antidepressants and Dementia: Is There a Link?

Coconut Oil and Dementia

Transcutaneous Electrical Nerve Stimulation for Dementia

What is Dementia?

AAM - The Search for a Cure to Alzheimer's

Gender and Alzheimer’s Risk

Mixed Dementia Prevention and Treatment

Alzheimer's Disease and the Microbiome

Does Herpesvirus Cause Alzheimer's?

Does Depression and Anxiety Increase the Risk of Dementia?

Does Type 2 Diabetes Increase the Risk of Alzheimer’s Disease?

What Causes Dementia?

What is Mixed Dementia?

AAM - Genetics of Alzheimer's

Biomarkers for Alzheimer's Disease

Dementia Symptoms

Antibody Research and Alzheimer’s Disease

Alzheimer’s tangles and plaques: what’s the difference?

Mixed Dementia Symptoms and Diagnosis

Dementia Prevention

Alzheimer's Disease Causes

Alzheimer's Disease Diagnosis

Alzheimer's Disease Questions

AAM - Air pollution and Alzheimer's

Dementia with Lewy Bodies

Designing Dementia-Friendly Environments

Differences Between Alzheimer's and Dementia

Do Antioxidants Benefit Patients with Alzheimer’s and Parkinson’s?

Parkinson's Compared to Dementia with Lewy Bodies (DLB)

Latest Alzheimer's & Dementia News and Research

Walking patterns help distinguish Lewy body dementia from Parkinson’s

Doctors often struggle to distinguish early dementia with Lewy bodies from early Parkinson's disease.

24 Mar 2026

Cerebrospinal fluid marker enhances accuracy in diagnosis of Parkinson’s and Lewy body dementia

An international consortium has achieved a major breakthrough in the diagnosis of neurological diseases. In a recent publication in the scientific journal Nature Medicine, they describe the discovery of a new quantitative biomarker in lumbar fluid (cerebrospinal fluid) that is helping doctors to diagnose Parkinson's disease and Lewy body dementia more accurately.

24 Mar 2026

Mediterranean diet may protect health through mitochondrial microproteins

A new study led by researchers at the USC Leonard Davis School of Gerontology suggests that the benefits of the Mediterranean diet may be driven, in part, by tiny proteins hidden within our mitochondria, opening a new window into how diet shapes aging and disease risk.

23 Mar 2026

New dual blood test reduces false positives in Alzheimer's screening

Alzheimer's disease is characterised by the accumulation of two proteins in the brain: amyloid-beta and tau.

23 Mar 2026

New protein atlas identifies distinct subtypes of neurodegenerative diseases

Neurodegenerative diseases form a tangled biological web with overlapping molecular signatures and symptoms. To decode this complexity, a multi-institute collaboration led by St. Jude Children's Research Hospital scientists developed the pan-neurodegeneration atlas (PanNDA).

23 Mar 2026

Internal compass helps the brain keep memories stable during change

A new discovery by McGill researchers sheds light on how we retain memories over time, even though brain activity is constantly changing.

23 Mar 2026

Higher meat intake may slow cognitive decline in older adults with APOE ε4

In older Swedish adults, higher meat intake was associated with slower cognitive decline and lower dementia risk among people carrying APOE ε3/ε4 or ε4/ε4, but not among other genotype groups. A higher processed-to-total meat ratio was linked to worse dementia outcomes, while unprocessed red meat and poultry showed no substantial difference.

22 Mar 2026

Oral semaglutide fails to slow early Alzheimer’s decline in two phase 3 trials

Two large phase 3 trials found that oral semaglutide 14 mg did not slow cognitive or functional decline over 104 weeks in people with early symptomatic, amyloid-positive Alzheimer’s disease. Semaglutide was generally consistent with its known safety profile and showed some biomarker changes, but these did not translate into clinical benefit.

22 Mar 2026

‘How low can you go?’ The shifting guidelines for blood pressure control

The patient initially came to see Mark Supiano in 2017 because her family was concerned about her short-term memory loss.

20 Mar 2026

Brain age from sleep patterns may signal future dementia risk

A machine-learning analysis of brain waves recorded during sleep may help identify people at high risk of developing dementia, according to a study led by UC San Francisco and Beth Israel Deaconess Medical Center in Boston.

19 Mar 2026

Brain lesions in Down syndrome show unexpected reversible changes

What has long been interpreted as permanent and irreversible vascular damage may not be exclusively so.

19 Mar 2026

Genetic risk for Alzheimer's disease may be modified by higher meat intake

Older people with a genetic risk of Alzheimer's disease did not experience the expected increase in cognitive decline and dementia risk if they consumed relatively large amounts of meat.

19 Mar 2026

New compound targets the neuronal epigenome to treat Alzheimer's disease

A team from the University of Barcelona has designed and validated in animal models an innovative compound with a pioneering mechanism of action for the treatment of Alzheimer's disease.

19 Mar 2026

Siemens Healthineers launches brain health research portfolio with first biomarker assays now available

Siemens Healthineers announced today its offerings for brain health research are expanding, with the brain-derived, fully automated Atellica IM Phosphorylated tau 217 (pTau217) and Atellica IM Brain Derived Tau (BDTau) assays now available for 1.

From Siemens Healthineers 19 Mar 2026

Menopause may raise women’s Alzheimer risk earlier than doctors once thought

This review argues that women’s higher Alzheimer disease risk may be shaped in part by midlife neuroendocrine aging, especially the menopause transition, rather than by longevity alone. It highlights early menopause, bilateral oophorectomy, vasomotor symptoms, and midlife cognitive changes as underinvestigated but potentially important risk markers, while calling for sex-specific, biomarker-driven prevention strategies.

18 Mar 2026

New data hub aims to advance alternatives to animal testing

A research team at NYU Langone Health and Sage Bionetworks has been awarded a $25 million grant to establish the data hub and coordinating center for the National Institutes of Health's Complement-Animal Research in Experimentation (Complement-ARIE) program.

18 Mar 2026

People with type 1 diabetes face higher risk of developing dementia

Having type 1 diabetes is associated with a higher risk of developing dementia, according to a study published March 18, 2026, in Neurology®, the medical journal of the American Academy of Neurology.

18 Mar 2026

Study links financial strain to faster cognitive aging

Worse financial well-being in midlife and older age -and especially declines over time-are associated with lower memory scores and faster cognitive decline, reports a new study at Columbia University Mailman School of Public Health.

18 Mar 2026

Targeting protein fragment may improve Huntington disease treatments

Treatments that target a fragment of the mutant protein that causes Huntington's disease might be more effective than treatments, now in clinical trials, that target the whole protein but leave this fragment intact, a new study in mice suggests.

18 Mar 2026

New data platform transforms prediction and understanding of Alzheimer’s disease

A powerful new real-world data platform could transform how scientists predict and understand Alzheimer's disease and Alzheimer's disease related dementias (AD/ADRD), reports a new study at Columbia University Mailman School of Public Health and collaborators at the Vagelos College of Physicians and Surgeons, the School of Nursing as well as the University of Miami and University of Chicago.

18 Mar 2026