Stroke Risk Factors and Prevention

Stroke Risk Factors

There are two types of stroke risk factors: modifiable and nonmodificable.

Modifiable risks of stroke

Some risk factors can be reduced by changing personal habits or receiving medical treatment. These are called modifiable risk factors.

High blood pressure
Narrowing of arteries that supply blood to the brain due to atherosclerosis
High cholesterol levels, particularly low-density lipoprotein (LDL) cholesterol
Smoking
Obesity
Lack of exercise
Drinking excessive amounts of alcohol
Diabetes mellitus
Atrial fibrillation, a treatable abnormality of heart rhythm

Nonmodifiable stroke risk factors

Increased risks based on medical history, age, and race are called nonmodifiable risk factors.

A prior stroke or pre-existing cardiovascular disease other than stroke
A prior transient ischemic attack (TIA) — a temporary interrupting of the brain's blood supply, often called a mini-stroke
Family members who have had strokes
Age 60 or older
African-American

Preventing a Stroke

According to the National Stroke Association, up to 80 percent of strokes can be prevented. Some risk factors are out of your control, such as age and race, but you can reduce your risk by changing personal habits or receiving medical treatment.

The following activities may help prevent a stroke:

Exercise regularly.
Increase intake of fruits and vegetables and limit dietary salt and fat.
Refrain from smoking.
Drink alcohol only in moderation (one to two drinks per day).
Maintain a healthy weight.
Frequently check blood pressure and follow physician recommendations for keeping it in a safe range.
Consider taking a low dose of aspirin if your physician determines it is safe.
Keep chronic medical conditions, like high cholesterol and diabetes, under control.
Seek medical care if you have symptoms of a stroke, even if symptoms stop.

Stroke Resources

UPMC Patient Education: