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A seizure is a sudden, uncontrolled burst of electrical activity in the brain. It can cause changes in behavior, movements, feelings and levels of consciousness. Having two or more seizures at least 24 hours apart that don't have a known cause is considered to be epilepsy.
A seizure is a condition where brain cells malfunction and send electrical signals uncontrollably. That causes symptoms affecting other parts of your brain and body. Everyone can have seizures, but some people can have them more easily for various reasons. Seizures are often treatable, especially depending on the underlying cause.
Mar 17, 2023 · Seizures are changes in your brain’s electrical activity. Learn more about types of seizures, causes and symptoms, and how you can help someone having a seizure.
A seizure is a burst of uncontrolled electrical activity between brain cells (also called neurons or nerve cells) that causes temporary abnormalities in muscle tone or movements (stiffness, twitching or limpness), behaviors, sensations or states of awareness. Seizures are not all alike.
Dec 4, 2023 · A seizure is abnormal electrical activity in the brain that happens quickly. It may go nearly unnoticed. In serious cases, it may cause unconsciousness and convulsions, when your body...
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Oct 14, 2023 · Epilepsy is common. It's estimated that 1.2% of people in the United States have active epilepsy, according to the Centers for Disease Control and Prevention. Epilepsy affects people of all genders, races, ethnic backgrounds and ages. Seizure symptoms can vary widely.
A seizure is a period of symptoms due to abnormally excessive or synchronous neuronal activity in the brain. [6] Outward effects vary from uncontrolled shaking movements involving much of the body with loss of consciousness ( tonic-clonic seizure ), to shaking movements involving only part of the body with variable levels of consciousness ...
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Learn about the different types of seizures and what causes them. Also find out what to do if you see someone having a seizure. This content does not have an English version.
seizure noun (MEDICAL) [ C ] a very sudden attack of an illness in which someone becomes unconscious or develops violent movements. （疾病的）骤发，突发，发作. an epileptic seizure 癫痫突发. [ C ] old use. a sudden failure of the heart. 心脏病突发. His aunt died of a seizure.
Nov 28, 2023 · Epilepsy is a chronic brain disorder in which groups of nerve cells, or neurons, in the brain sometimes send the wrong signals and cause seizures. Neurons normally generate electrical and chemical signals that act on other neurons, organs, and muscles to produce human thoughts, feelings, and actions.
