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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.
There are many kinds of seizures and many possible causes of seizures, including: epilepsy. brain infections. low blood sugar. Some seizures start in childhood, while others begin...
Seizure causes fall into two main categories depending on why they happen: Provoked seizures (nonepileptic) : A trigger, which could be a temporary condition or certain circumstances, causes seizure symptoms to happen.
Discover causes and factors that trigger seizures, including both generalized and partial seizures.
Around 3 million people in the U.S. have epilepsy, making it the fourth most common neurological disease after migraine, stroke and Alzheimer's. Epilepsy happens as a result of abnormal electrical brain activity, also known as a seizure, kind of like an electrical storm inside your head.
CT scanner Enlarge image. Pinpointing seizure location Enlarge image. After a seizure, a health care professional thoroughly reviews your symptoms and medical history. You may need several tests to determine the cause of your seizure and evaluate how likely it is that you'll have another one. Tests may include: A neurological exam.
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.
The most common cause of epilepsy in adults is stroke. In some cases, there is no known cause for adult-onset epilepsy. What causes adult-onset epilepsy? Epilepsy in adults is usually due to:...
Epilepsy that begins during adulthood usually occurs due to head trauma, stroke, or an infection of the brain. What Are the Early Signs of Epilepsy? Epilepsy. Seizures in Those Without Prior History. A seizure could be the first sign of epilepsy. However, some health conditions can cause a seizure, even in the absence of epilepsy.
Nonepileptic seizures can be caused by other conditions such as low blood sugar, a fainting spell, or an anxiety attack. SEIZURE SYMPTOMS. Seizure types — One of the most common seizure types is a convulsion. This may be called a "tonic-clonic," "generalized tonic-clonic," or "grand mal" seizure.