Epilepsy

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: A primary generalized seizure involves the entire brain. A partial seizure begins in one brain area. It affects only part of the brain. However, a partial seizure can turn into a generalized seizure. Many conditions can affect the brain and trigger epilepsy. These include: Brain injury, either before or after birth Brain tumors Infections, especially meningitis and encephalitis Genetic conditions Abnormal blood vessels in the brain Lead poisoning
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