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.

Childhood Dementia Causes

What is Mixed Dementia?

Differences Between Alzheimer's and Dementia

Antidepressants and Dementia: Is There a Link?

Coconut Oil and Dementia

Dementia Symptoms

Aromatherapy for Dementia

Transcutaneous Electrical Nerve Stimulation for Dementia

Dementia Diagnosis

Dementia with Lewy Bodies

Mixed Dementia Symptoms and Diagnosis

See more featured articles »

Mixed Dementia Prevention and Treatment

Does Depression and Anxiety Increase the Risk of Dementia?

Bright Light Therapy and Dementia

Childhood Dementia Signs and Symptoms

Dementia Treatment

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

What is Dementia?

Migraines and Dementia

Dementia Prevention

Latest Dementia News and Research

Gene mutation that aids high-altitude survival could repair myelin sheath damage

A genetic mutation that helps animals like yaks and Tibetan antelopes survive at high altitudes may hold the key to repairing nerve damage in conditions such as cerebral paralysis and multiple sclerosis (MS).

13 Mar 2026

Stress hormones disrupt the internal GPS system of the brain

Persons under stress may have a harder time spatially orienting themselves. Researchers in Bochum have discovered why.

13 Mar 2026

Global experts to debate dementia and assisted dying at QUT conference

Dementia, global trends, community attitudes, conscientious objections by doctors and health facilities, Indigenous perspectives, and organ donation are among agenda topics for the International Conference on Assisted Dying and Other End of Life Care (ICEL5) at QUT next month.

13 Mar 2026

Blood protein structure changes may enable earlier detection of Alzheimer’s

Advanced proteomics and AI reveal blood protein changes, offering insights into early Alzheimer's detection and differentiation from mild cognitive impairment.

13 Mar 2026

Study reveals racial differences in early Alzheimer's brain changes

A team of researchers at the USC Mark and Mary Stevens Neuroimaging and Informatics Institute (Stevens INI) at the Keck School of Medicine of USC has identified important differences in how early Alzheimer's disease-related brain changes appear across racial and ethnic groups, underscoring the need for more inclusive approaches to studying and diagnosing the disease.

12 Mar 2026

New study identifies specific brain cells most vulnerable to ALS and dementia

Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) belong to a spectrum of neurodegenerative diseases with overlapping symptoms, characterized by muscle wasting, paralysis, dementia, and other serious impairments.

12 Mar 2026

Everyday wearable data could reveal early brain health signals

Wearable sensors combined with AI offer a novel approach to continuous monitoring of cognitive and emotional health, detecting early changes in brain function.

12 Mar 2026

MUSC’s new manual for navigating dementia

For an estimated 11% of Americans over age 65 who have dementia and the over 11 million unpaid caregivers supporting them, there is no instruction manual for navigating life after diagnosis. A team of College of Nursing researchers at the Medical University of South Carolina is working to fill that gap.

12 Mar 2026

Blood test marker p-tau217 helps detect early dementia risk in cognitively healthy older women

A long-term study of 2,766 women in the Women’s Health Initiative Memory Study found that higher baseline plasma p-tau217 levels were associated with a greater risk of developing mild cognitive impairment or probable dementia.

11 Mar 2026

How the aging gastrointestinal tract drives age-related cognitive decline

We become forgetful as we age. This is often seen as a universal truth, but in fact it is far from universal: some people remain incredibly sharp at 100 years old, while others experience memory loss starting in middle age.

11 Mar 2026

Blood marker linked to Alzheimer’s also found in systemic amyloidosis

A certain blood protein regarded as an early indicator of Alzheimer's disease also appears to play a role in other disorders.

11 Mar 2026

Wegovy linked to higher risk of eye stroke and vision loss

Wegovy, a GLP-1 agonist for weight loss, may carry the highest risk of 'eye stroke' (ischemic optic neuropathy) and sudden sight loss of the semaglutide drugs, finds an analysis of unintended side effect reports published in the British Journal of Ophthalmology.

10 Mar 2026

Study links p-tau217 levels to long-term dementia risk in women

Researchers from the University of California San Diego have found that a novel blood-based biomarker can predict a woman's risk of developing dementia as many as 25 years before symptoms appear.

10 Mar 2026

Air pollution may be lowering global IQ and widening inequality, researchers warn

Researchers argue that exposure to fine particulate air pollution (PM2.5) may affect cognitive function and intelligence, potentially causing large population-level losses in global IQ. Using modelling based on published exposure–response data, the authors estimate that pollution could be associated with tens of billions of IQ points lost worldwide, with the largest impacts in lower-income regions.

10 Mar 2026

How social and environmental exposures across life influence mental health risk

Researchers outline how the exposome framework, which captures the totality of environmental exposures across the lifespan, can help explain how non-genetic factors shape mental health risk and resilience. The perspective highlights how integrating environmental, biological, and social data could improve prevention strategies, research models, and personalized mental health care.

10 Mar 2026

Immune cells found to actively promote plaque formation in Alzheimer’s disease

A new study led by researchers from VIB and KU Leuven shows that immune cells called microglia can actively promote the formation of plaques in Alzheimer's disease, challenging the long-standing view that these cells serve only as defenders against plaque buildup.

10 Mar 2026