what happens when you have a stroke?
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A stroke occurs when a blood vessel that carries oxygen and nutrients to the brain is either blocked by a clot or bursts (or ruptures). When that happens, part of the brain cannot get the blood (and oxygen) it needs, so it and brain cells die. 80 percent of strokes are preventable.
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There are two main causes of stroke: a blocked artery (ischemic stroke) or leaking or bursting of a blood vessel (hemorrhagic stroke). Some people may have only a temporary disruption of blood flow to the brain, known as a transient ischemic attack (TIA), that doesn't cause lasting symptoms.
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Why does it increase your risk of stroke? High blood pressure puts an extra strain on all the blood vessels in your body. This can make a stroke due to a clot (ischaemic stroke) more likely, because high blood pressure damages your blood vessels and makes them become stiffer and more narrow.
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Stroke impacts the brain, and the brain controls our behavior and emotions. You or your loved one may experience feelings of irritability, forgetfulness, carelessness or confusion. Feelings of anger, anxiety or depression are also common.
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The causes and effects they have on your brain health are different, however. A stroke occurs due to a disruption of blood circulation in the brain. A seizure occurs due to a surge of electrical activity in the brain. In addition, a stroke can permanently affect your thinking and muscle control.
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The signs and symptoms of a TIA resemble those found early in a stroke and may include sudden onset of: Weakness, numbness or paralysis in your face, arm or leg, typically on one side of your body. Slurred or garbled speech or difficulty understanding others. Blindness in one or both eyes or double vision.
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Strokes can affect the following areas of the brain: brain stem, cerebellum, limbic system, and cerebrum. Located at the base of the brain, the brain stem maintains basic life-supporting functions such as breathing, heart rate, blood pressure, and digestion. A major stroke in this part of the brain is usually fatal.
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Stroke symptoms in women Lightheadedness, fainting, or loss of consciousness. Difficulty breathing or shortness of breath. General weakness. Agitation.
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['Headache.', 'Stiff neck.', 'Confusion.', 'Stroke symptoms (vision loss, weakness, and slurred speech)', 'Lightheadedness.', 'Shortness of breath.', 'Low blood pressure.', 'Blood in the stool.']
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['Memory loss, personality changes, trouble concentrating, irritability or progressive loss of consciousness.', 'Stroke.', "Severe damage to your body's main artery (aortic dissection)", 'Chest pain.', 'Heart attack.']
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It can result in ischemic stroke if a blood clot forms after a trivial or major trauma in the neck and later causes blockage of a blood vessel in the brain. Cervical artery dissection is an important cause of stroke in young and middle-aged adults.
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Stroke is a disease that affects the arteries leading to and within the brain. It is the No. 5 cause of death and a leading cause of disability in the United States. A stroke occurs when a blood vessel that carries oxygen and nutrients to the brain is either blocked by a clot or bursts (or ruptures).
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However, if a large stroke happens in a part of the brain vital to breathing or the heart, it can lead to death in a short time. If the stroke is very large, it can cause widespread damage that the brain can't survive even if the cause of a clot or a bleed is treated.
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An ischemic stroke happens when blood flow through the artery that supplies oxygen-rich blood to the brain becomes blocked. Blood clots often cause the blockages that lead to ischemic strokes.
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A TIA usually lasts only a few minutes and doesn't cause permanent damage. Often called a ministroke, a transient ischemic attack may be a warning. About 1 in 3 people who has a transient ischemic attack will eventually have a stroke, with about half occurring within a year after the transient ischemic attack.
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Transient ischaemic attacks (TIAs) happen when one of the blood vessels that supply your brain with oxygen-rich blood becomes blocked. This interruption in the flow of blood to the brain means it cannot do some of its normal functions properly, leading to symptoms such as slurred speech and weakness.
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A stroke is a serious medical condition that requires emergency care. A stroke can cause lasting brain damage, long-term disability, or even death. If you think you or someone else is having a stroke, call 9–1–1 right away. Do not drive to the hospital or let someone else drive you.