Dementia

Dementia is not a specific disease. It is a descriptive term for a collection of symptoms that can be caused by a number of disorders that affect the brain. People with dementia have significantly impaired intellectual functioning that interferes with normal activities and relationships.

What Causes Dementia?

Dementia occurs due to loss of brain function that occurs with certain diseases. It can affect several brain functions such as memory, thinking, language, planning, behavior and judgement. Dementias are usually progressive and worsen with time. They usually are degenerative and non reversible.

Dementia with Lewy Bodies

Migraines and Dementia

Bright Light Therapy and Dementia

What is Dementia?

Antidepressants and Dementia: Is There a Link?

Dementia Symptoms

Childhood Dementia Causes

Dementia Treatment

Does Depression and Anxiety Increase the Risk of Dementia?

Coconut Oil and Dementia

Mixed Dementia Symptoms and Diagnosis

See more featured articles »

Mixed Dementia Prevention and Treatment

Childhood Dementia Signs and Symptoms

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

Dementia Diagnosis

Aromatherapy for Dementia

Transcutaneous Electrical Nerve Stimulation for Dementia

Dementia Prevention

Differences Between Alzheimer's and Dementia

What is Mixed Dementia?

Latest Dementia News and Research

PCORI announces new funding for patient-centered clinical effectiveness research

The Patient-Centered Outcomes Research Institute (PCORI) today announced new funding to support patient-centered comparative clinical effectiveness research (CER) across a range of health conditions experienced by Americans, along with projects designed to help bring practice-changing CER results into real-world care settings.

28 Apr 2026

Emergency settings more likely to initiate risky medications for seniors

Initial prescriptions for medications affecting cognition, such as antipsychotics, are disproportionately likelier to come from acute and post-acute settings such as emergency rooms, hospitals and skilled nursing facilities than they are from doctors' offices, new UCLA research suggests.

28 Apr 2026

New scientific statement defines brain health across life

Brain health isn't determined only by genetics or what happens later in life. A growing body of research shows that a range of factors-from mental health and sleep to environment, lifestyle and social conditions-play a powerful role in shaping how the brain functions and ages.

28 Apr 2026

Scientists uncover why brain damage continues after stroke

Every stroke begins with a sudden interruption of blood flow in the brain. But what happens afterward—why neurons continue to lose function and die over the following days—has remained one of the most important unanswered questions in neuroscience.

28 Apr 2026

Ultra-processed foods linked to poorer attention and higher dementia risk scores

Research shows that higher ultra-processed food consumption may impair attention and elevate modifiable dementia risk, highlighting concerns for brain health.

28 Apr 2026

Three cognitive trajectories identified in preclinical Alzheimer’s disease

Cognitive decline in Alzheimer's disease differs substantially from one person to the next and is not well predicted by existing medical tests.

27 Apr 2026

Advanced heart, kidney and metabolic disease linked to higher cancer risk

People with advanced heart, kidney and metabolic disease may face a higher risk of developing cancer, according to new research published today in the American Heart Association's peer-reviewed scientific journal Circulation: Population Health and Outcomes.

27 Apr 2026

Stronger slow-wave sleep helps older adults regulate anxiety overnight

Researchers at Center for BrainHealth at The University of Texas at Dallas have identified a specific feature of sleep that helps older adults regulate anxiety overnight - and shown that, as it deteriorates with age, emotional wellbeing deteriorates along with it.

27 Apr 2026

Ultra-processed foods linked to measurable drops in human attention span

New research from Monash University, the University of São Paulo and Deakin University shows a diet high in heavily processed foods can negatively impact the brain's ability to focus and increases the risk of developing dementia.

25 Apr 2026

New insight into how molecular measures of aging relate to neuroimaging markers of brain health

A new research paper was published in Volume 18 of Aging-US on April 7, 2026, titled "Association of epigenetic age acceleration with MRI biomarkers of aging and Alzheimer's disease neurodegeneration."

25 Apr 2026

Scientists identify STING switch driving inflammation in Alzheimer’s disease

The brain has its own immune system, which detects threats and mounts a defense. A growing body of evidence has shown that in Alzheimer's disease, those immune cells are chronically overactivated, causing inflammation that damages the connections between brain cells.

24 Apr 2026

Unraveling the mystery of cognitive resilience in aging brains

Some brains resist Alzheimer's, even when the disease is already present. Researchers at the Netherlands Institute for Neuroscience have found that this likely depends on how specific brain cells, known as immature neurons, respond to damage caused by the disease.

24 Apr 2026

Revisiting memories together improves emotional wellbeing in dementia care

Caring for a family member with dementia can feel like losing a loved one who is still alive, but a new study suggests that revisiting memories together through a simple digital tool can help ease that grief and even strengthen the patient-caregiver bond.

23 Apr 2026

New human cell model replicates key mechanisms of neurodegenerative diseases

Researchers at LMU have developed a human cell model that replicates key mechanisms of neurodegenerative diseases - with potential for novel therapies.

23 Apr 2026

Severe strokes significantly increase the risk of progressive dementia

As stroke severity increases, the risk of progressive cognitive decline and dementia substantially escalates, according to a national study led by Michigan Medicine researchers.

23 Apr 2026

Metabolic health may shape future dementia risk for Latino communities

Researchers from the University of California San Diego have found that diabetes is linked to changes in measurable biological signals in the blood that are associated with Alzheimer's disease and brain damage in Latino adults.

23 Apr 2026

Astrocytes form complex networks across the mouse brain

Cells long thought to play a secondary role in brain function build their own far-reaching connections, a new study in mice showed. These pathways appear to connect distant regions in ways that have not been mapped before.

23 Apr 2026

Virtual neurology visits match in-person care outcomes

For people who see a neurology clinician for the first time, a new study has found that being seen virtually vs. in-person made no difference in how soon they needed more care.

22 Apr 2026

Poor sleep linked to higher dementia risk in epilepsy

For people with epilepsy, getting poor sleep was associated with a higher risk of dementia compared to people without epilepsy, according to a study published April 22, 2026, in Neurology, the medical journal of the American Academy of Neurology.

22 Apr 2026

Researchers identify high rates of untreated hypertension in young veterans

Approximately half a million post-9/11 U.S. veterans who served in the military have had high blood pressure, and among them, about half were undiagnosed and one quarter were untreated, according to a new study published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

22 Apr 2026