What Is It?
Epilepsy is a nervous system condition. It causes repeated, sudden, brief changes in the brain's electrical activity. These changes cause various types of symptoms.
Epileptic episodes are called seizures or convulsions. During a seizure, brain cells fire uncontrollably at up to four times their normal rate. Seizures temporarily affect the way a person behaves, moves, thinks or feels.
There are two main types of seizures:
Many conditions can affect the brain and trigger epilepsy. These include:
In most people with epilepsy, the specific cause is unknown.
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