Transient Ischemic Attacks (TIAs): Causes, Symptoms & Risk Factors

The most common causes of TIAs are:

* Atherosclerosis: This is the buildup of plaque in the arteries, which narrows them and makes it harder for blood to flow through.

* Blood clots: These can form in the arteries of the brain or in other parts of the body and travel to the brain.

* Vasospasm: This is a sudden, temporary constriction of the arteries in the brain.

* Embolism: This is a foreign body that travels through the blood vessels to the brain and blocks an artery.

* Trauma: Head injuries can damage the arteries in the brain and cause TIAs.

* Certain medical conditions: These include high blood pressure, diabetes, heart disease, smoking, and obesity.

Some people are at higher risk for TIAs than others. These include people with:

* A family history of TIAs or strokes

* A personal history of TIAs or strokes

* A history of smoking

* A history of high blood pressure

* A history of diabetes

* Heart disease

* Obesity