Epilepsy Epilepsy is a medical condition that affects the brain. It causes a person to have recurring seizures meaning two or more, over time. What Is a Seizure? A seizure happens when brain cells misfire and stop working the way they are supposed to, sending too many electrical signals at one time to your brain. You might think about it like an electrical storm. These uncontrolled electrical signals cause a change in awareness movement or sensation. You might hear it called a fit, convulsion. |