Hypertension or high blood pressure is the major risk factor for the stroke. Stroke is often referred to as brain attack. Uncontrolled high blood pressure increases a person's stroke risk by four to six times. Sudden numbness or weakness in the face, decreased vision on one or both the eyes are the common symptoms of the stroke However, the stroke can be prevented by visiting your doctor or getting your blood pressure check done on regular basis. To know more watch this video.