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?

Differences Between Alzheimer's and Dementia

Alzheimer's Disease Causes

AAM - Genetics of Alzheimer's

Alzheimer's Disease Symptoms

Alzheimer's Disease Diagnosis

Alzheimer's Disease Treatments

AAM - The Search for a Cure to Alzheimer's

Alzheimer's Disease Questions

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

Alzheimer's Disease Epidemiology

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Pollution and Alzheimer's

AAM - Air pollution and Alzheimer's

Is Alzheimer's Disease Transmissible?

Diet and Alzheimer's Disease

Types of Alzheimer's Disease

Stem Cell Therapy for Alzheimer's

Alzheimer's and Veganism

Biomarkers for Alzheimer's Disease

Alzheimer's Disease Prevention

Inflammation and Alzheimer's Disease

Integrated PET/MR for Alzheimer’s Disease

Gender and Alzheimer’s Risk

Alzheimer's Disease and Sleep Disruption

Does Herpesvirus Cause Alzheimer's?

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

Can Statins Protect Against Alzheimer’s Disease?

Stress and Alzheimer's Disease

Alzheimer's Disease and the Microbiome

Amyloid Cascade Hypothesis

Omega-3 and Alzheimer’s Disease

Antibody Research and Alzheimer’s Disease

Alzheimer’s Disease and Calcium Supplements

Alzheimer’s Disease and Gingko Biloba

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

What Causes Dementia?

Dementia Diagnosis

Dementia Prevention

Dementia Symptoms

Dementia Treatment

Dementia with Lewy Bodies

Bright Light Therapy and Dementia

Aromatherapy for Dementia

Coconut Oil and Dementia

What is Mixed Dementia?

Transcutaneous Electrical Nerve Stimulation for Dementia

Childhood Dementia Causes

Mixed Dementia Prevention and Treatment

Mixed Dementia Symptoms and Diagnosis

Childhood Dementia Signs and Symptoms

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

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

Antidepressants and Dementia: Is There a Link?

Does Depression and Anxiety Increase the Risk of Dementia?

Migraines and Dementia

What are Amyloid Plaques?

Can Happiness Protect You from Dementia?

Mythbusting: Misconceptions in Dementia

Designing Dementia-Friendly Environments

Dancing Through Dementia: How Movement Aids Memory and Mood

Latest Alzheimer's & Dementia News and Research

New research explores how music improves memory in humans

Music improves mood and memory to such an extent that treatment strategies for diseases like Alzheimer's or dementia sometimes incorporate music.

24 Jun 2025

Using machine learning to map brain aging at the cellular level

In a comprehensive Genomic Press interview, Stanford University researcher Eric Sun reveals how machine learning is revolutionizing our understanding of brain aging at an unprecedented cellular resolution.

24 Jun 2025

Newborns and Alzheimer's patients have elevated blood levels of phosphorylated tau

Newborn babies and patients with Alzheimer's disease share an unexpected biological trait: elevated levels of a well-known biomarker for Alzheimer's.

24 Jun 2025

Study identifies potential way to slow or block progression of age-related macular degeneration

A new study from Washington University School of Medicine in St. Louis identifies a possible way to slow or block progression of age-related macular degeneration, a leading cause of blindness in people over age 50.

24 Jun 2025

Diabetes drug semaglutide shows promise in reducing dementia risk

Researchers at the Case Western Reserve School of Medicine have found that semaglutide, a popular diabetes and weight-loss drug, may lower the risk of dementia in people with type 2 diabetes (T2D).

24 Jun 2025

Protective gene variant slows Alzheimer’s by taming brain inflammation

A rare gene mutation that delays Alzheimer's disease does so by damping inflammatory signaling in brain-resident immune cells, according to a preclinical study led by investigators at Weill Cornell Medicine.

23 Jun 2025

Many older people embrace vaccines. Research is proving them right.

Kim Beckham, an insurance agent in Victoria, Texas, had seen friends suffer so badly from shingles that she wanted to receive the first approved shingles vaccine as soon as it became available, even if she had to pay for it out-of-pocket.

23 Jun 2025

Assessment of insulin resistance using TyG index flags rapid cognitive decline in Alzheimer's patients

Insulin resistance detected by routine triglyceride-glucose (TyG) index can flag people with early Alzheimer's who are four times more likely to present rapid cognitive decline, according to new research presented at the European Academy of Neurology (EAN) Congress 2025.

22 Jun 2025

Researchers use electric fields to identify aged cells

Researchers from Tokyo Metropolitan University have created a new way of telling "aged" human cells apart from younger ones using electric fields.

21 Jun 2025

Study reveals intercellular flow as crucial factor in tissue mechanics

Water makes up around 60 percent of the human body. More than half of this water sloshes around inside the cells that make up organs and tissues. Much of the remaining water flows in the nooks and crannies between cells, much like seawater between grains of sand.

21 Jun 2025

Targeting ST6Gal-I shows promise in reducing Alzheimer’s disease pathology

A recent study published in Engineering has provided novel insights into the involvement of α2,6-sialylation in Alzheimer's disease (AD), revealing that the ablation of α2,6-sialyltransferase-I (ST6Gal-I), an enzyme responsible for α2,6-sialylation, can downregulate BACE1 expression and suppress the production of amyloid-β42 (Aβ42) plaques, which are hallmarks of AD.

20 Jun 2025

New 3D immunohistochemistry method enhances deep tissue imaging

Three dimensional immunohistochemistry (3D-IHC) has transformed our ability to visualize the spatial arrangement of cells and molecules in intact tissues.

19 Jun 2025

Why Alzheimer’s DNA tests don’t treat all populations equally

A major global study tested whether European-derived polygenic risk scores (PGS) for Alzheimer’s disease can predict risk across diverse populations. While PGS performed well in many groups, it was less accurate in individuals of sub-Saharan African and Indian ancestry, highlighting the urgent need for more inclusive genetic data.

19 Jun 2025

Study finds high levels of iron in the brains of people diagnosed with Down syndrome and Alzheimer's

Scientists at the USC Leonard Davis School of Gerontology have discovered a key connection between high levels of iron in the brain and increased cell damage in people who have both Down syndrome and Alzheimer's disease.

19 Jun 2025

Researchers identify key differences in Alzheimer's progression in humans and animal models

Although it is known that Alzheimer's disease can start up to 20 years before the first symptoms appear, the lack of knowledge about how it progresses prevents the development of effective treatments, as well as a clear diagnosis to confront this neurodegenerative disease, which origin is also unknown.

19 Jun 2025

Positive wellbeing may help reduce the risk of memory loss in middle age

Higher levels of wellbeing may help reduce the risk of memory loss in middle age, suggests new research, which tracked more than 10,000 over 50-year-olds across a 16-year span.

19 Jun 2025

Brain age gap may influence the relationship between cognitive impairment risk factors

The difference between the brain's predicted age and actual chronological age, called a brain age gap, may influence the relationship between cognitive impairment risk factors, like high blood pressure and diabetes, and a person's cognitive performance, also known as thinking and memory skills, according to a study published June 18, 2025, in Neurology, the medical journal of the American Academy of Neurology.

19 Jun 2025

Early infant behavior predicts cognitive ability decades later

Watching a baby babble, play and interact with others can provide useful insight into what their cognitive ability might be like decades later, according to new University of Colorado Boulder research published in the journal PNAS.

19 Jun 2025

Cognitive decline tied to gut microbes and nutritional access

A new study led in part by Mount Sinai researchers has found a compelling link between the composition of the gut microbiome and the risk of cognitive impairment (RCI) in adults, underscoring the complex role that both biology and social determinants-such as food insecurity-play in brain health.

18 Jun 2025

UQ researchers discover new lipid-based pathway essential for memory formation

A new lipid-based pathway essential for memory formation has been discovered by University of Queensland researchers – a breakthrough that could lead to treatments for post-traumatic stress disorder (PTSD).

18 Jun 2025