The symptoms or warning signs of a pre-stroke may include dizziness, confusion, severe headaches and numbness in arms, legs or the face, especially when the numbness is focused on one side, according to WebMD. Additional symptoms may include trouble walking, speaking or seeing with one or both eyes.
Pre-stroke symptoms or warning signs indicate that the brain is not getting enough blood due to a blocked or ruptured artery, which could cause temporary or permanent damage, explains WebMD. When a stroke occurs, the brain also does not receive enough glucose and oxygen. Treatment for the symptoms should be immediate because it could prevent a stroke or reduce the amount of damage to the brain.
Common risk factors for a stroke include high blood pressure, history of heart disease, high cholesterol and diabetes, according to WebMD. People who use tobacco or smoke are twice as much at risk for stroke than nonsmokers. Extra weight or obesity can raise blood pressure or the risk of diabetes, leading to an increased risk for a stroke. Certain disorders such as atrial fibrillation, a condition marked by irregular heartbeats, may increase the risk of a stroke. Individuals with atherosclerosis, a condition in which artery walls are blocked or narrowed by fatty plaques, may have a higher risk as well.