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.

Alzheimer's Disease Prevention

Amyloid Cascade Hypothesis

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

Differences Between Alzheimer's and Dementia

Dancing Through Dementia: How Movement Aids Memory and Mood

Does Depression and Anxiety Increase the Risk of Dementia?

Can Statins Protect Against Alzheimer’s Disease?

Biomarkers for Alzheimer's Disease

Alzheimer's Disease and Sleep Disruption

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

Alzheimer's Disease Treatments

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AAM - Air pollution and Alzheimer's

Alzheimer's Disease Symptoms

Does Herpesvirus Cause Alzheimer's?

Is Alzheimer's Disease Transmissible?

Dementia Treatment

Stem Cell Therapy for Alzheimer's

Dementia Diagnosis

Migraines and Dementia

What Causes Dementia?

Alzheimer's Disease Questions

Inflammation and Alzheimer's Disease

Gender and Alzheimer’s Risk

AAM - The Search for a Cure to Alzheimer's

Designing Dementia-Friendly Environments

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

Alzheimer’s Disease and Calcium Supplements

AAM - Genetics of Alzheimer's

Childhood Dementia Signs and Symptoms

Can Happiness Protect You from Dementia?

Alzheimer’s Disease and Gingko Biloba

Aromatherapy for Dementia

Dementia Symptoms

Diet and Alzheimer's Disease

Childhood Dementia Causes

Mixed Dementia Prevention and Treatment

Transcutaneous Electrical Nerve Stimulation for Dementia

Antibody Research and Alzheimer’s Disease

Dementia with Lewy Bodies

Mixed Dementia Symptoms and Diagnosis

Alzheimer's Disease Diagnosis

Antidepressants and Dementia: Is There a Link?

Alzheimer's Disease Epidemiology

Dementia Prevention

Omega-3 and Alzheimer’s Disease

Types of Alzheimer's Disease

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

Coconut Oil and Dementia

Bright Light Therapy and Dementia

What is Mixed Dementia?

Stress and Alzheimer's Disease

Pollution and Alzheimer's

What is Dementia?

What are Amyloid Plaques?

Integrated PET/MR for Alzheimer’s Disease

Mythbusting: Misconceptions in Dementia

Alzheimer's Disease Causes

Alzheimer's Disease and the Microbiome

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

Alzheimer's and Veganism

Latest Alzheimer's & Dementia News and Research

Wearable forehead patch tracks brain-water shifts during sleep at home

A soft, wireless NIRS forehead patch tracked water-sensitive brain signals during 16 overnight home sleep recordings in four healthy men. The signals changed with EEG/EOG-defined sleep stages, suggesting a new way to study sleep-linked brain-fluid dynamics, although the device did not directly measure CSF flow or glymphatic clearance.

9 Jul 2026

Damaged myelin alters sleep brain rhythms in neurological diseases

Scientists have discovered how damage to the myelin sheath – the insulating layer around nerve fibres – affects brain activity during sleep.

9 Jul 2026

Study reveals complex relationship between alcohol and Alzheimer's disease

Alcohol use has been associated with an increased risk of cognitive decline and dementia. But new research from the Texas A&M University Naresh K. Vashisht College of Medicine at Texas A&M Health suggests the relationship between alcohol and Alzheimer's disease is more complicated than previously thought.

9 Jul 2026

Early-onset dementia lowers work productivity years before formal diagnosis

People diagnosed with early-onset dementia had reduced work productivity up to 15 years before diagnosis, according to a study published July 8, 2026, in Neurology, the medical journal of the American Academy of Neurology.

9 Jul 2026

New global Alzheimer’s disease country insights tool reveals major inequalities in diagnosis, treatment access and preparedness across countries

Alzheimer’s Disease International (ADI) has launched the Alzheimer’s Disease Atlas (AD Atlas), a first of its kind platform highlighting how countries diagnose, treat and support people living with dementia.

9 Jul 2026

Long-term exposure to air pollution linked to increased risk of Parkinson’s disease

Air pollution is a major public health issue, with long-term exposure to fine particulate matter linked with an increased risk of various diseases, including stroke and dementia.

9 Jul 2026

Study advances understanding of mixed protein pathologies in dementia

The aging brain frequently harbors multiple protein pathologies that contribute to Alzheimer's, Parkinson's and other neurodegenerative diseases.

8 Jul 2026

Study identifies new target for Parkinson's disease neuroprotection

Parkinson's disease (PD) is the second most common form of neurodegenerative disease and afflicts more than ten million people worldwide. While current therapies address disease symptoms, they do not prevent the underlying neurodegeneration that drives the disease.

8 Jul 2026

Weill Cornell Medicine receives federal grant to study new gene therapy for Alzheimer's disease

The National Institute on Aging of the National Institutes of Health has awarded a five-year grant initially worth $8.37 million for Weill Cornell Medicine researchers to study a new gene therapy for Alzheimer's disease in people who have a high genetic risk of developing the condition.

8 Jul 2026

NFL players have higher rates of neurodegenerative disease-caused mortality

Mass General Brigham, Boston University, and the Concussion & CTE Foundation cohort study of nearly 20,000 NFL players reveals that players are dying of dementia and Parkinson's disease at much higher rates than the general population.

8 Jul 2026

Investigational drug ameliorates neuronal DNA damage and inflammation in Alzheimer's model

Accumulation of DNA damage in the brain's neurons may contribute to the development of Alzheimer's disease.

8 Jul 2026

New review shows why antidepressants often fail in Alzheimer’s and Parkinson’s depression

A Molecular Psychiatry review shows that depression in Alzheimer’s and Parkinson’s disease may reflect disease-specific molecular, neurotransmitter, inflammatory, and circuit-level disruptions rather than standard depression biology alone. It argues that broad antidepressants often show limited efficacy in these patients and that future trials should use biomarkers, neuroimaging, and symptom profiling to guide targeted treatments.

7 Jul 2026

Molecular changes in the liver of space travelers provide clues about aging

What happens to the human body in space may help scientists create new anti-aging therapies.

7 Jul 2026

Study offers insight into how long-term inflammation may contribute to cognitive decline

The King's College London study, published in Nature Communications, offers insight into how long-term inflammation may contribute to cognitive decline in disorders such as Alzheimer's disease, aging, depression, and the lingering neurological effects of viral infections.

7 Jul 2026

Short sleep and poor sleep quality track with Parkinson’s risk

Using CHARLS data from 2011 to 2020, researchers found that sleep duration and self-reported sleep quality were associated with Parkinson’s disease risk in middle-aged and older Chinese adults. Short sleep was linked to higher PD risk, while age-specific patterns suggested a linear association in adults aged ≤60 years and a U-shaped relationship in those aged >60 years.

6 Jul 2026

Study identifies promising drug target to prevent neurodegenerative conditions

6 Jul 2026

Study compares different light therapies for treating Alzheimer's disease

The researchers treated 5‑month‑old 5xFAD mice – a model with aggressive amyloid deposition – with 810‑nm light (25 mW/cm² at the scalp, ~6.25 mW/cm² brain dose for CW, and half that for 40‑Hz due to 50% duty cycle) for 10 minutes daily over 37 days.

6 Jul 2026

Study explores the relationship between heart issues and cognitive function

New in JNeurosci, Xia Zhang, from the Max Planck Institute for Human Cognitive and Brain Sciences, led a study exploring the relationship between heart issues and cognitive function.

6 Jul 2026

Study tracks why rural residents face higher chronic disease risks

Following the release of data from Assumption Parish earlier this year, researchers at LSU's Pennington Biomedical Research Center have published the first set of data from the Risks Underlying Rural Areas Longitudinal, or RURAL, Heart and Lung study in Franklin Parish. The data book for Franklin Parish is now available to explore.

6 Jul 2026

Rumination carries anxiety into deeper distress for caregivers of dementia patients

A new study from Virginia Tech suggests patterns of repetitive negative thinking explain how anxiety develops into deeper stress for caregivers of people living with dementia, and that mindfulness training may help identify and interrupt that progression.

6 Jul 2026