Epilepsy means a tendency to have recurrent seizures.
There are over 40 types of epileptic seizure and a person may have more than one type. It is caused by an over-activity of electricity in the brain, causing a disturbance in the brains normal functions. The seizure may only affect part of the brain and the person may not go unconscious, the effects of this depend on the area of the brain effected. Common experiences are deja-vu, hallucinations, faintness, emotional changes. Medication can help to control seizures though there are often side effects from the drugs.