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

What is Mixed Dementia?

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

Antidepressants and Dementia: Is There a Link?

Migraines and Dementia

Childhood Dementia Causes

Transcutaneous Electrical Nerve Stimulation for Dementia

Aromatherapy for Dementia

Dementia Symptoms

Does Depression and Anxiety Increase the Risk of Dementia?

What is Dementia?

See more featured articles »

Childhood Dementia Signs and Symptoms

Dementia Prevention

Bright Light Therapy and Dementia

Differences Between Alzheimer's and Dementia

Mixed Dementia Prevention and Treatment

Dementia Treatment

Dementia Diagnosis

Mixed Dementia Symptoms and Diagnosis

Coconut Oil and Dementia

Latest Dementia News and Research

Menopause hormone therapy not linked to dementia risk in women

A major review of prior research has found no evidence that menopause hormone therapy either increases or decreases dementia risk in post-menopausal women, in a new study led by University College London (UCL) researchers.

22 Dec 2025

Research highlights a potential therapeutic strategy for vascular dementia

A possible new treatment for impaired brain blood flow and related dementias is on the horizon.

22 Dec 2025

Getting a dog for the first time boosts walking and remote social ties

First-time dog owners in Japan showed significant increases in walking activity and non-face-to-face social contact over one year compared with non-dog owners. No significant changes were observed in vigorous activity or face-to-face social contact, highlighting specific behavioral associations rather than broad lifestyle shifts.

21 Dec 2025

Simple blood test maps hidden Alzheimer’s disease changes

This population-based study used plasma pTau217 to estimate how common Alzheimer’s disease neuropathological changes are across age and cognitive status in a Norwegian community cohort. Prevalence rose steeply with age and was strongly associated with APOE ε4 genotype, education level, and kidney function, with implications for future use of blood biomarkers in clinical practice.

21 Dec 2025

Study finds Brain Care Score as a strong predictor of stroke across racial groups

A new study from Mass General Brigham found the Brain Care Score (BCS) is a strong predictor of stroke across different racial groups in the U.S.

18 Dec 2025

Experimental drug targets early toxic amyloid to slow Alzheimer’s disease

An experimental drug developed at Northwestern University has demonstrated further promise as an early intervention for Alzheimer's disease.

18 Dec 2025

Eating high-fat cheese and cream may be linked to lower dementia risk

Eating more high-fat cheese and high-fat cream may be linked to a lower risk of developing dementia, according to a new study published on December 17, 2025, in Neurology, the medical journal of the American Academy of Neurology.

17 Dec 2025

Lysophosphatidylcholines show gene-dependent effects in early Alzheimer’s disease

A new study presents robust evidence on the role of lysophosphatidylcholines (LPCs) in the onset of Alzheimer's disease. Researchers discovered that LPCs-compounds that transport a variety of healthy fatty acids to the brain-either promote Alzheimer's or protect against it, depending on a person's genetics.

17 Dec 2025

Combined physical frailty and depression may sharply raise dementia risk

Concurrent physical frailty and depression likely boost the risk of dementia in older people, with the interaction of these 2 factors alone contributing around 17% of the overall risk, suggest the findings of a large international study, published in the open access journal General Psychiatry.

16 Dec 2025

Study identifies molecular drivers of cerebral small vessel disease

A new study identifies molecular factors that promote small vessel disease - and an active drug that can restore impaired vascular functions.

16 Dec 2025

Tau biology expands beyond microtubules to neurodegeneration, metabolism and mental illness

An Thought Leaders Invited Review published today in Genomic Psychiatry by Dr. Peng Lei and colleagues presents a sweeping synthesis of tau protein research that fundamentally reframes our understanding of this molecule's dual identity.

16 Dec 2025

Blood-based biomarkers and the new landscape of Alzheimer’s research

For much of the past century, Alzheimer's disease has been one of medicine's most daunting frontiers—biologically complex, devastating in impact, and difficult to diagnose early.

From Quanterix 15 Dec 2025

New framework tracks response to anti-amyloid therapies in Alzheimer's

In the last few years, progress has been made in the fight against Alzheimer's disease with a class of therapies called anti-amyloid antibodies (anti-Aβ).

15 Dec 2025

New study defines rapidly progressive dementia

A new multicenter study led by Mayo Clinic researchers has established a practical, evidence-based definition for rapidly progressive dementia (RPD), a rare but devastating form of cognitive decline that develops over months instead of years.

15 Dec 2025

Six midlife depressive symptoms linked to dementia decades later

Six particular depressive symptoms when experienced in midlife predict dementia risk more than two decades later, finds a new study led by University College London (UCL) researchers.

15 Dec 2025

Single-pill combination medications may simplify treatment for adults with high blood pressure

Taking one pill that combines two or more blood pressure medications may help adults with high blood pressure (also known as hypertension) lower their blood pressure level faster and more effectively than taking multiple medications separately, and it may also reduce the risk of heart attack and stroke, according to a new scientific statement published today in the American Heart Association's journal Hypertension.

15 Dec 2025

FAU researchers create deep learning model that detects and evaluates Alzheimer's, FTD

Dementia is a group of disorders that gradually impair memory, thinking and daily functioning. Alzheimer's disease (AD), the most common form of dementia, affects about 7.2 million Americans aged 65 and older in 2025.

15 Dec 2025

New molecular ruler enables precise measurement of toxic Tau fibrils in fluid samples

Researchers have developed a new tool, FibrilPaint combined with the FibrilRuler test, that allows scientists to directly measure the length of toxic Tau amyloid fibrils in tiny fluid samples, from the earliest aggregation stages to mature fibrils and even at very low concentrations.

11 Dec 2025

Researchers identify enzyme linked to myelin damage and neurodegenerative conditions

Researchers at Oregon Health & Science University have identified a type of enzyme with a complicated name - cell migration inducing and hyaluronan-binding protein, or CEMIP - is associated with disorders ranging from multiple sclerosis to stroke to neurodegenerative conditions like Alzheimer's disease.

11 Dec 2025

Cuffless blood pressure devices show great promise as alternatives to traditional arm-cuff monitors

Cuffless devices to measure blood pressure, such as smartwatches, rings, patches and fingertip monitors, show great promise as alternatives to traditional arm-cuff monitors, however, they are not yet proven accurate enough to diagnose high blood pressure or guide treatment decisions, according to a new scientific statement published today in the American Heart Association's journal Hypertension.

11 Dec 2025