The five major causes of stroke according to studies and research are
High Blood Pressure (Hypertension):
Chronic high blood pressure can damage blood vessels, making them more likely to rupture or become blocked. It's the most significant risk factor for both ischemic and hemorrhagic strokes.
Heart Disease:
Conditions such as atrial fibrillation, coronary artery disease, and heart valve defects increase the risk of stroke. Atrial fibrillation, for example, can cause blood clots to form in the heart, which can travel to the brain.
Diabetes
Diabetes damages blood vessels and increases the likelihood of developing clots. High blood sugar levels can also lead to the buildup of fatty deposits in the blood vessels, narrowing them and reducing blood flow to the brain.
Smoking:
Tobacco use damages blood vessels, raises blood pressure, and lowers oxygen levels in the blood. This increases the risk of clot formation and can lead to both ischemic and hemorrhagic strokes.
Obesity and Sedentary Lifestyle:
Excess body weight and lack of physical activity contribute to several stroke risk factors, including high blood pressure, diabetes, and heart disease. Maintaining a healthy weight and staying active can significantly reduce stroke risk.