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.

What is Dementia?

Alzheimer's Disease and Sleep Disruption

Gender and Alzheimer’s Risk

Designing Dementia-Friendly Environments

Alzheimer's Disease Causes

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

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

Alzheimer's Disease Prevention

Alzheimer's Disease Symptoms

Mixed Dementia Symptoms and Diagnosis

Alzheimer's Disease Epidemiology

See more featured articles »

Alzheimer's Disease and the Microbiome

Pollution and Alzheimer's

Alzheimer's and Veganism

Childhood Dementia Causes

Diet and Alzheimer's Disease

Alzheimer's Disease Diagnosis

Can Happiness Protect You from Dementia?

What is Mixed Dementia?

Does Depression and Anxiety Increase the Risk of Dementia?

Dementia Prevention

Biomarkers for Alzheimer's Disease

Antibody Research and Alzheimer’s Disease

What Causes Dementia?

Alzheimer’s Disease and Gingko Biloba

Childhood Dementia Signs and Symptoms

Dancing Through Dementia: How Movement Aids Memory and Mood

Antidepressants and Dementia: Is There a Link?

Can Statins Protect Against Alzheimer’s Disease?

AAM - The Search for a Cure to Alzheimer's

Stem Cell Therapy for Alzheimer's

Integrated PET/MR for Alzheimer’s Disease

Alzheimer's Disease Treatments

Dementia Symptoms

Stress and Alzheimer's Disease

What are Amyloid Plaques?

Mythbusting: Misconceptions in Dementia

Is Alzheimer's Disease Transmissible?

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

Dementia with Lewy Bodies

Dementia Diagnosis

AAM - Air pollution and Alzheimer's

Transcutaneous Electrical Nerve Stimulation for Dementia

Alzheimer's Disease Questions

Inflammation and Alzheimer's Disease

Migraines and Dementia

Differences Between Alzheimer's and Dementia

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

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

Amyloid Cascade Hypothesis

Alzheimer’s Disease and Calcium Supplements

Bright Light Therapy and Dementia

Omega-3 and Alzheimer’s Disease

Coconut Oil and Dementia

Mixed Dementia Prevention and Treatment

AAM - Genetics of Alzheimer's

Aromatherapy for Dementia

Types of Alzheimer's Disease

Dementia Treatment

Does Herpesvirus Cause Alzheimer's?

Latest Alzheimer's & Dementia News and Research

Higher optimism may lower dementia risk in older adults

Higher optimism in adults aged 70 and older was associated with a lower risk of developing dementia over up to 14 years of follow-up in the Health and Retirement Study. The association remained after adjustment for demographic factors, depression, health conditions, smoking, and physical activity, although the study was observational and cannot prove causation.

9 Apr 2026

New combination therapy shows safer approach to treating Alzheimer’s disease

A new study finds that combining the current medications for Alzheimer's disease with small molecules derived from micronutrients found in grapes, berries, peanuts and turmeric is a safer and more effective way to treat the disease.

9 Apr 2026

New hippocampus model advances understanding of Alzheimer’s progression

With a new model of the brain region essential to memory formation, from cells to whole-brain networks, the team hopes to identify critical changes in the progression of Alzheimer's disease that could point the way to earlier, more effective treatments.

9 Apr 2026

Swapping passive screen time with mental activity may cut dementia risk

Research shows that mentally active sedentary behavior can reduce dementia risk, emphasizing the importance of daily cognitive engagement for brain health.

9 Apr 2026

Study reveals lung-brain link between smoking and neurodegeneration

The correlation between smoking and neurodegeneration is well-documented, with one study from 2011 finding heavy smoking in midlife was associated with a greater than 100% increase in risk of dementia, Alzheimer's and vascular dementia more than two decades later.

8 Apr 2026

High-quality plant-based diets linked to lower dementia risk

Eating a higher quality plant-based diet is associated with a lower risk of Alzheimer's disease and other related dementias compared to eating a lower quality plant-based diet, according to a study published April 8, 2026, in Neurology, the medical journal of the American Academy of Neurology.

8 Apr 2026

Study reveals how tau tangles spread from one brain region to another in Alzheimer's

Alzheimer's disease is a progressive neurodegenerative disorder that slowly impairs memory, affects thinking skills, and eventually interferes with daily functioning.

8 Apr 2026

High-dose flu vaccine reduces Alzheimer’s risk in older adults

A study reveals high-dose influenza vaccines could modestly reduce Alzheimer's risk in older adults, especially women, offering new insights into prevention.

8 Apr 2026

Higher optimism linked to lower dementia risk

Higher optimism is associated with a lower risk of developing dementia, according to a new study in the Journal of the American Geriatrics Society.

8 Apr 2026

Antiviral drugs and shingles vaccines tied to lower dementia risk

New evidence links viral infections to dementia risk, suggesting vaccines and antiviral therapies may offer preventive pathways against cognitive decline.

8 Apr 2026

RNA barcoding maps neural connections with unprecedented resolution

By tagging neurons with molecular "barcodes," researchers mapped connections among thousands of neurons in the mouse brain with unprecedented speed and resolution.

7 Apr 2026

Hearing loss and sex shape dual-task outcomes in older adults with mild cognitive impairment

Cognitive and physical training can help older adults with mild cognitive impairment (MCI) maintain or improve their ability to move and think simultaneously, but hearing ability and sex influence outcomes, according to a new Concordia-led study.

7 Apr 2026

Gladstone investigator wins MIND Prize to decode hidden Alzheimer’s genetics

Gladstone Institutes investigator Ryan Corces, PhD, has been named a 2026 winner of the Pershing Square Foundation's MIND Prize, a prestigious award recognizing next-frontier thinkers who are uncovering a deeper understanding of the brain and cognition.

7 Apr 2026

Review identifies TREM-1 as key amplifier of inflammatory diseases

Published in Current Molecular Pharmacology, a comprehensive review by Eman R. Al Sawy and colleagues from Cairo University consolidates evidence on the triggering receptor expressed on myeloid cells-1 (TREM-1) as a central amplifier of inflammatory responses.

7 Apr 2026

First participants join clinical study to fast-track dementia research in the UK

The Dementia Trials Accelerator has taken a significant step towards transforming dementia clinical trials in the UK by welcoming its first participants into clinics for simple tests that will ultimately get the right people into clinical trials quicker, speeding up vital research.

7 Apr 2026