Heart issues that might signal dementia

 

1. Atrial Fibrillation (AFib)

Irregular heart rhythm reduces efficient blood flow to the brain.This can increase the risk of small clots and strokes, which damage brain tissue and may accelerate cognitive decline.

2. Heart Failure

When the heart struggles to pump enough blood, the brain may not receive adequate oxygen and nutrients.

Chronic low circulation can impair memory, thinking speed, and overall brain health.

3. Coronary Artery Disease (CAD)

Narrowed or blocked arteries reduce blood flow, raising the chance of “silent strokes” and vascular brain injury.

Studies link CAD with higher dementia risk, especially when combined with other vascular conditions.

4. Hypertension (High Blood Pressure)

Long-term high blood pressure damages blood vessels, leading to microbleeds and white matter changes in the brain.

Midlife hypertension is a strong predictor of dementia later in life.

5. Carotid Artery Disease

Plaque buildup in the neck arteries can limit brain blood flow or cause strokes.

Even without a full stroke, reduced flow can gradually impair cognition.

6. Small Vessel Disease / Vascular Stiffness

Hardening or narrowing of small vessels in the brain often stems from heart and vascular disease.

It shows up as tiny brain lesions on scans, linked to slower thinking and memory lapses.

7. Silent Strokes or Mini-Strokes (TIAs)

Often unnoticed, but each event can cause small cumulative brain damage.

They are more likely in people with arrhythmia, heart valve disease, or uncontrolled hypertension.