High blood pressure: This is the most important cause of stroke. It weakens the blood vessels and causes them to burst.
High cholesterol: Atherosclerosis, a buildup of fat in the arteries, leads to stroke.
Diabetes: When blood sugar levels increase, the arteries become damaged and the risk of stroke increases.
Heart disease: Atrial fibrillation, an irregular heartbeat, can cause blood clots in the heart, which can travel to the brain and block blood flow.
Smoking and alcohol: Smoking narrows the arteries and increases the risk of blood clots.
Overweight: Obesity and a sedentary lifestyle can cause stroke.
Heredity: If someone in your family has had a stroke, you are also more likely to have it.