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.

Migraines and Dementia

Dementia Symptoms

Differences Between Alzheimer's and Dementia

Childhood Dementia Signs and Symptoms

Antidepressants and Dementia: Is There a Link?

What is Dementia?

Transcutaneous Electrical Nerve Stimulation for Dementia

Dementia Treatment

Coconut Oil and Dementia

Dementia Diagnosis

Dementia Prevention

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Bright Light Therapy and Dementia

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

Childhood Dementia Causes

Mixed Dementia Symptoms and Diagnosis

What is Mixed Dementia?

Aromatherapy for Dementia

Does Depression and Anxiety Increase the Risk of Dementia?

Mixed Dementia Prevention and Treatment

Dementia with Lewy Bodies

Latest Dementia News and Research

Higher optimism may lower dementia risk in older adults

Higher optimism in adults aged 70 and older was associated with a lower risk of developing dementia over up to 14 years of follow-up in the Health and Retirement Study. The association remained after adjustment for demographic factors, depression, health conditions, smoking, and physical activity, although the study was observational and cannot prove causation.

9 Apr 2026

New combination therapy shows safer approach to treating Alzheimer’s disease

A new study finds that combining the current medications for Alzheimer's disease with small molecules derived from micronutrients found in grapes, berries, peanuts and turmeric is a safer and more effective way to treat the disease.

9 Apr 2026

New hippocampus model advances understanding of Alzheimer’s progression

With a new model of the brain region essential to memory formation, from cells to whole-brain networks, the team hopes to identify critical changes in the progression of Alzheimer's disease that could point the way to earlier, more effective treatments.

9 Apr 2026

Swapping passive screen time with mental activity may cut dementia risk

Research shows that mentally active sedentary behavior can reduce dementia risk, emphasizing the importance of daily cognitive engagement for brain health.

9 Apr 2026

Study reveals lung-brain link between smoking and neurodegeneration

The correlation between smoking and neurodegeneration is well-documented, with one study from 2011 finding heavy smoking in midlife was associated with a greater than 100% increase in risk of dementia, Alzheimer's and vascular dementia more than two decades later.

8 Apr 2026

High-quality plant-based diets linked to lower dementia risk

Eating a higher quality plant-based diet is associated with a lower risk of Alzheimer's disease and other related dementias compared to eating a lower quality plant-based diet, according to a study published April 8, 2026, in Neurology, the medical journal of the American Academy of Neurology.

8 Apr 2026

Study reveals how tau tangles spread from one brain region to another in Alzheimer's

Alzheimer's disease is a progressive neurodegenerative disorder that slowly impairs memory, affects thinking skills, and eventually interferes with daily functioning.

8 Apr 2026

High-dose flu vaccine reduces Alzheimer’s risk in older adults

A study reveals high-dose influenza vaccines could modestly reduce Alzheimer's risk in older adults, especially women, offering new insights into prevention.

8 Apr 2026

Higher optimism linked to lower dementia risk

Higher optimism is associated with a lower risk of developing dementia, according to a new study in the Journal of the American Geriatrics Society.

8 Apr 2026

Antiviral drugs and shingles vaccines tied to lower dementia risk

New evidence links viral infections to dementia risk, suggesting vaccines and antiviral therapies may offer preventive pathways against cognitive decline.

8 Apr 2026

Hearing loss and sex shape dual-task outcomes in older adults with mild cognitive impairment

Cognitive and physical training can help older adults with mild cognitive impairment (MCI) maintain or improve their ability to move and think simultaneously, but hearing ability and sex influence outcomes, according to a new Concordia-led study.

7 Apr 2026

Gladstone investigator wins MIND Prize to decode hidden Alzheimer’s genetics

Gladstone Institutes investigator Ryan Corces, PhD, has been named a 2026 winner of the Pershing Square Foundation's MIND Prize, a prestigious award recognizing next-frontier thinkers who are uncovering a deeper understanding of the brain and cognition.

7 Apr 2026

First participants join clinical study to fast-track dementia research in the UK

The Dementia Trials Accelerator has taken a significant step towards transforming dementia clinical trials in the UK by welcoming its first participants into clinics for simple tests that will ultimately get the right people into clinical trials quicker, speeding up vital research.

7 Apr 2026

Could vitamin D in midlife protect your brain from early Alzheimer’s?

Higher serum vitamin D in midlife is associated with reduced tau burden in the brain, highlighting its potential role in early dementia risk assessment.

7 Apr 2026

Study shows how environmental factors accelerate biological age of the brain

The latest findings from the Global Brain Health Institute (GBHI) at Trinity College Dublin identify important brain health implications for prevention, public health, and policy.

3 Apr 2026

Losing a parent hits harder with fewer siblings

Findings suggest that having siblings may buffer the mental health impact of parental loss, with fewer siblings associated with increased medication use.

3 Apr 2026

High-dose flu shots inked to lower Alzheimer's dementia risk in older adults

A large US claims-based study found that adults aged 65 and older who received a high-dose flu vaccine had a lower observed risk of Alzheimer dementia than those who received a standard-dose vaccine, with the association lasting up to 25 months in per-protocol analyses and 28 months in intention-to-treat analyses. The signal appeared stronger and more sustained in women, though the authors stress that the findings are observational and need confirmation in longer prospective studies.

2 Apr 2026