Seizure
A seizure is sudden uncontrolled electrical activity in the brain that can cause a variety of physical manifestations, including shaking or stiffening of the arms and legs, changes in awareness, loss of consciousness, or abnormal behaviors. They usually last up to minutes at a time. Seizures that last longer are considered a medical emergency. Seizures are divided into those that are generalized and focal. Generalized seizures involve all areas of the brain when they start, while focal seizures involve only one part of the brain and may later spread to others.
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