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.

What is Mixed Dementia?

Aromatherapy for Dementia

Dementia Symptoms

Childhood Dementia Signs and Symptoms

Bright Light Therapy and Dementia

Coconut Oil and Dementia

Differences Between Alzheimer's and Dementia

Does Depression and Anxiety Increase the Risk of Dementia?

What is Dementia?

Dementia Prevention

Childhood Dementia Causes

See more featured articles »

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

Antidepressants and Dementia: Is There a Link?

Dementia Diagnosis

Transcutaneous Electrical Nerve Stimulation for Dementia

Dementia with Lewy Bodies

Dementia Treatment

Mixed Dementia Prevention and Treatment

Mixed Dementia Symptoms and Diagnosis

Migraines and Dementia

Latest Dementia News and Research

Physical frailty linked to higher dementia risk

A new study suggests that physical frailty may contribute to the development of dementia. The study was published on September 17, 2025, in Neurology®, the medical journal of the American Academy of Neurology.

17 Sep 2025

Tai chi improves memory and sleep in older adults with type 2 diabetes

A 12-week randomized trial found that remotely delivered Tai Chi significantly enhanced cognitive performance and sleep quality in older adults with Type 2 Diabetes. These gains surpassed those from supervised fitness walking or usual care, without increasing adverse events.

17 Sep 2025

Repetitive head impacts trigger early brain changes in young athletes

Research supported by the National Institutes of Health (NIH) shows that repeated head impacts from contact sports can cause early and lasting changes in the brains of young- to middle-aged athletes.

17 Sep 2025

High fat diet impairs memory formation through autophagy dysfunction

Modern lifestyles and dietary changes have significantly increased the consumption of high-fat foods, contributing to a steep rise in the prevalence of obesity, diabetes, and metabolic disorders.

17 Sep 2025

Watching more than 4 hours of TV daily raises the risk of cognitive decline

This study finds a link between long TV viewing and cognitive impairment, stressing the importance of addressing sedentary lifestyles for dementia prevention.

17 Sep 2025

Two-step blood and scan strategy delivers near-perfect accuracy for early Alzheimer's signs

Plasma p-tau217 testing can help detect preclinical Alzheimer disease in cognitively unimpaired adults. Using it as a first-line screen followed by positron emission tomography or cerebrospinal fluid testing boosts accuracy, reduces false positives, and streamlines recruitment.

16 Sep 2025

AI breakthrough offers a new way to predict and visualize disease processes

To solve a problem, we have to see it clearly. Whether it's an infection by a novel virus or memory-stealing plaques forming in the brains of Alzheimer's patients, visualizing disease processes in the body is the first step toward alleviating human suffering. It's also often the most difficult and costly.

16 Sep 2025

Age influences amyloid positivity in Parkinson's disease without dementia

A new research paper was published in Volume 17, Issue 8 of Aging-US on August 6, 2025, titled "Age-related trends in amyloid positivity in Parkinson's disease without dementia."

16 Sep 2025

Lifestyle changes show promise in preventing cognitive decline and Alzheimer’s disease

An estimated 7.2 million Americans over age 65 currently live with Alzheimer's disease (AD). That number is expected to nearly double to 13.8 million by 2060.

16 Sep 2025

Researchers develop a digital cognitive test for diagnosing Alzheimer's disease

Researchers at Lund University in Sweden have developed a digital cognitive test for diagnosing Alzheimer's disease that is intended for use in primary care.

15 Sep 2025

Caregiver personas offer insights for improving dementia medication management

Understanding the strategies and unmet needs of caregivers managing medications for people with Alzheimer's disease or related dementias may improve the lives of both caregivers and patients.

13 Sep 2025

UCL launches landmark trial of Alzheimer’s blood test

A major UCL-led clinical trial, aiming to transform the diagnosis of Alzheimer's disease through a simple blood test, is now welcoming its first participants who will be recruited via memory clinics across the UK.

11 Sep 2025

Object recognition shapes spatial awareness in the brain

We take our understanding of where we are for granted, until we lose it. When we get lost in nature or a new city, our eyes and brains kick into gear, seeking familiar objects that tell us where we are.

11 Sep 2025

Compact bNIRS technology could become a diagnostic toolkit for dementia

Early and accurate diagnosis of dementia remains a major challenge. Standard approaches such as MRI and PET scans can provide valuable information about brain structure and function, but they are expensive, not always accessible, and often too expensive for repeated use.

11 Sep 2025

SLIT2 protein levels in the eye and blood linked to cognitive function

Neurocognitive impairments are classified by pathological changes with potential for destruction of neural tissue. One change known to occur in neurodegenerative disorders is an accumulation of proteins causing pathological damage.

11 Sep 2025

Chronic insomnia linked to faster cognitive decline and brain changes

People with chronic insomnia may experience faster declines in memory and thinking skills as they age-along with brain changes that can be seen on imaging scans-than people who do not have chronic insomnia, according to a study published in the September 10, 2025, issue of Neurology, the medical journal of the American Academy of Neurology.

10 Sep 2025

Can video game–style exercise slow Alzheimer’s risk?

Gamified exercise training improves hippocampal volume and cognitive performance in mild neurocognitive disorders, offering potential for dementia prevention.

10 Sep 2025

Special MRI technique predicts onset of mild cognitive impairment and cognitive decline

A special MRI technique that detects iron levels in different regions of the brain can predict the onset of mild cognitive impairment and cognitive decline in cognitively unimpaired older adults, potentially creating a pathway to earlier interventions, according to a study published today in Radiology, a journal of the Radiological Society of North America.

9 Sep 2025

Dementia risk rises sharply with multiple psychiatric disorders

The odds of developing dementia are strongly linked to the number of co-existing mental health disorders, rising from twice as high for one disorder to 11 times as high for four or more, finds research published in the open access journal BMJ Mental Health.

9 Sep 2025

Changing indoor environments could improve sleep for people living with dementia

Implementing changes to indoor environments, such as cooler bedrooms at night and increasing the amount of bright light during the day, could significantly improve sleep for people living with dementia, according to a study led by the University of Surrey.

9 Sep 2025