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.

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

What is Dementia?

Types of Alzheimer's Disease

AAM - Air pollution and Alzheimer's

Does Depression and Anxiety Increase the Risk of Dementia?

Childhood Dementia Causes

Gender and Alzheimer’s Risk

Does Herpesvirus Cause Alzheimer's?

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

Alzheimer's and Veganism

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

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Antidepressants and Dementia: Is There a Link?

Stem Cell Therapy for Alzheimer's

AAM - The Search for a Cure to Alzheimer's

Can Happiness Protect You from Dementia?

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

Bright Light Therapy and Dementia

Dancing Through Dementia: How Movement Aids Memory and Mood

Aromatherapy for Dementia

Alzheimer’s Disease and Calcium Supplements

Coconut Oil and Dementia

Antibody Research and Alzheimer’s Disease

Dementia Symptoms

Transcutaneous Electrical Nerve Stimulation for Dementia

Can Statins Protect Against Alzheimer’s Disease?

Alzheimer's Disease Questions

Integrated PET/MR for Alzheimer’s Disease

Alzheimer's Disease Symptoms

Alzheimer’s Disease and Gingko Biloba

Differences Between Alzheimer's and Dementia

What Causes Dementia?

Biomarkers for Alzheimer's Disease

Alzheimer's Disease Causes

What is Mixed Dementia?

What are Amyloid Plaques?

Alzheimer's Disease Diagnosis

Alzheimer's Disease and the Microbiome

Mixed Dementia Symptoms and Diagnosis

Diet and Alzheimer's Disease

Is Alzheimer's Disease Transmissible?

Pollution and Alzheimer's

Omega-3 and Alzheimer’s Disease

Childhood Dementia Signs and Symptoms

Dementia Prevention

Alzheimer's Disease Epidemiology

AAM - Genetics of Alzheimer's

Amyloid Cascade Hypothesis

Dementia with Lewy Bodies

Migraines and Dementia

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

Inflammation and Alzheimer's Disease

Designing Dementia-Friendly Environments

Stress and Alzheimer's Disease

Mixed Dementia Prevention and Treatment

Alzheimer's Disease Treatments

Mythbusting: Misconceptions in Dementia

Alzheimer's Disease and Sleep Disruption

Dementia Diagnosis

Dementia Treatment

Alzheimer's Disease Prevention

Latest Alzheimer's & Dementia News and Research

New metric detects early Alzheimer’s changes in brain's white matter

Alzheimer's disease has traditionally been studied as a condition that primarily affects the brain's gray matter, where neuronal cell bodies are located and some of the disease's most characteristic lesions accumulate.

5 Aug 2026

The healthiest super-agers may have one thing in common: stable cognition

A 10-year study of 1,003 older adults linked cognitive super-aging to fewer emergency visits, unplanned hospital admissions, delirium episodes, dementia diagnoses, and residential aged care placements. Maintaining cognitive performance over time showed the strongest overall association with favorable health outcomes and was linked to a 46% lower mortality risk.

5 Aug 2026

NIH funds smartphone platform to improve driving safety for teens

Dr. Jeffrey Keller, Hibernia National Bank/Edward G. Schleider Endowed Chair at LSU's Pennington Biomedical Research Center, and Sara Seifert, president of Minnesota HealthSolutions, have received a new National Institutes of Health Small Business Innovation Research (SBIR) award to develop an innovative digital health platform that will help parents support teenagers with attention-deficit/hyperactivity disorder (ADHD) as they learn to drive.

4 Aug 2026

New study advances understanding of dementia after age 90

It may seem natural to assume that people experience cognitive decline after age 90, but until recently, researchers had limited evidence about how advanced age affects the brain.

4 Aug 2026

Exercise helps protect Hispanic adults from late life cognitive decline

Previous studies have examined the associations between adherence to LS7 and cognitive outcomes, with findings suggesting that higher LS7 scores are associated with better cognitive performance, reduced dementia risk and improved brain health.

4 Aug 2026

New 3D brain tissue model accelerates Alzheimer's drug development

How can Alzheimer's research be made faster, better, and more effective? After decades of intensive research worldwide and despite recent therapeutic advances, scientists have not managed to fully arrest the progress of the disease.

4 Aug 2026

Study connects late-life psychosis to abnormal tau protein buildup

Hallucinations and delusions that appear for the first time in midlife or later are often treated as psychiatric symptoms whose biological cause is unclear.

4 Aug 2026

Study links lower vitamin D to mood and cognitive health in adults over 85 with diabetes

Researchers studying 188 adults aged 85 years or older with type 2 diabetes found the lowest serum 25(OH)D concentrations among those with both depressive symptoms and mild cognitive impairment. Lower levels remained associated with having both conditions after adjustment for selected factors, but the cross-sectional study cannot establish causation or a benefit from supplementation.

3 Aug 2026

Daily social connections may improve long-term health and cognition

Calling a friend after a long day. Showing up to a neighbor's dinner when you'd rather stay home. Lingering a little longer in a conversation that didn't need to last.

3 Aug 2026

New AI model generates detailed maps of aging in brain regions

USC researchers have developed an approach that uses artificial intelligence to generate detailed maps that highlight differences in how distinct parts of the brain age.

3 Aug 2026

Gut microbiome shifts may begin before Alzheimer’s symptoms appear

A narrative review links reduced SCFA-producing gut bacteria and altered microbial metabolism with Alzheimer’s disease, while early evidence suggests similar changes may appear before cognitive symptoms. Mediterranean, DASH, MIND, and prudent diets are associated with beneficial microbial profiles, but direct evidence connecting diet, the microbiome, and amyloid pathology remains limited.

3 Aug 2026

Persistent financial hardship tracks with poorer memory and processing speed by midlife

Researchers linked persistent low income and financial hardship across early and mid-adulthood to poorer processing speed and verbal memory at age 53 in a British birth cohort. Neuroimaging suggested greater vulnerability to later brain atrophy among men, people from disadvantaged childhood backgrounds, and APOE-ε4 carriers, although these subgroup findings require replication.

2 Aug 2026

Researchers propose new framework to define clinical obesity

A new approach to defining obesity could help physicians better determine which patients need more intensive treatment by focusing on the effects of excess adiposity on organs and tissues rather than relying primarily on whether a person meets a set of metabolic risk thresholds.

31 Jul 2026

Discovery of calcium channel mechanism offers clues for brain disorder treatments

DGIST (President Kunwoo Lee) announced that a research team led by Professor Byung Chang Suh of the Department of Brain Sciences has, for the first time, uncovered a novel molecular mechanism that regulates the "N-type voltage-gated calcium channel (CaV2.2)," which plays a critical role in neural signal transmission.

29 Jul 2026

Early-life sugar restriction may reduce dementia risk later

Consuming less sugar in utero before birth and during the first one to two years of life was associated with a lower risk of developing dementia later in life, according to a study published July 29, 2026, in Neurology, the medical journal of the American Academy of Neurology.

29 Jul 2026

Overactive brain immune response linked to rare, severe genetic epilepsy

An overactive immune response in the brain may play a role in Dravet Syndrome, a rare and severe genetic epilepsy that typically begins in infancy, according to Weill Cornell Medicine researchers.

29 Jul 2026

A closer look at Parkinson’s brains finds tau where standard tests saw little

Researchers used single-molecule and super-resolution imaging to profile protein aggregates across six brain regions from 29 post-mortem donors, detecting high-intensity phosphorylated tau aggregates in the Parkinson’s disease putamen despite negligible conventional tau staining. PD cases with dementia showed greater tau burden than those without dementia, while the assay did not detect a PD-specific population of nanoscopic alpha-synuclein aggregates.

29 Jul 2026