Why Do Strokes Happen?

🧠 What Causes a Stroke?

There are two main types of stroke:

1. Ischemic Stroke (ā‰ˆ85% of all strokes)

Caused by a blood clot that blocks blood flow to part of the brain.

🩸 Common causes:

  • Atherosclerosis (plaque buildup in arteries)

  • Atrial fibrillation (irregular heartbeat)

  • Blood clot from another part of the body (e.g. heart)


2. Hemorrhagic Stroke

Caused by a burst blood vessel that leads to bleeding in or around the brain.

šŸ’„ Common causes:

  • High blood pressure

  • Aneurysms

  • Head trauma

  • Blood-thinning medications


3. Transient Ischemic Attack (TIA)

Also called a mini-stroke, this occurs when a clot temporarily blocks blood flow and then dissolves. A TIA is a major warning sign of a future stroke.


āš ļø Common Risk Factors That Trigger Strokes

  • High blood pressure (hypertension)

  • Smoking

  • Diabetes

  • High cholesterol

  • Obesity

  • Poor diet and lack of exercise

  • Stress and sleep disorders

  • Heart conditions (e.g., AFib, heart disease)

  • Excess alcohol or drug use


šŸ’¬ Can Strokes Be Prevented?

Yes—most strokes are preventable by managing the risk factors listed above. Lifestyle changes and early medical intervention are key.


šŸ–ļø Post-Stroke Recovery Tip

For stroke survivors, tools like ReHANDā„¢ help retrain the brain and restore hand function at home through mirror therapy, passive motion, and consistent training.