What is a Stroke?
A stroke can happen if something keeps the blood from flowing as it should. A person might have a clogged blood vessel, so the blood can't get through. Or a blood vessel may burst and a part of the brain is suddenly flooded with blood. Either way, with a stroke, brain cells die because they don't get the oxygen they need. Keep reading...
Risk Factors
Anyone can have a stroke. But some things are known to raise the risk. Some risk factors, such as smoking, are under your control. Others aren't. Risk factors you can't control include: age, race, medical history, and gender. Keep reading...
Lower Your Risk
Whether you're at high or average risk, there are things you can do to reduce your risk of stroke. Control your blood pressure. High blood pressure is the number one cause of stroke. Keeping your blood pressure lower than 120/80 can cut your risk. Don't smoke. Smoking doubles the risk of stroke. When you quit, your risk will start to decrease. Keep reading...
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Basis of the Brain


Food and oxygen are carried to the brain by blood vessels. These vessels are found on the surface of the brain and deep within the brain. The brain is only about 2% of the total body weight in humans, but it receives 15-20% of the body's blood supply. If the supply of blood which carries oxygen is stopped, brain cells will die. Although other organs need blood, the body tries to supply the brain with a constant flow of blood.
The blood brings many materials necessary for the brain to function properly. The blood also removes materials from the brain.