The brain is the “control center” of the body. It manages everything from movement and balance to emotions and memory. When a seizure occurs, some or all brain functions are affected.
The brain uses electrical signals to send messages throughout the body. Signals sent from different parts of the brain control different body functions. For instance, one part of the brain controls balance. Another part controls speech. A doctor can record brain signals using a test called an EEG (electroencephalogram).
During a seizure, excessive electrical signals in the brain disrupt its normal activity. How this affects body functions depends on two main factors. First is the location of the seizure. For instance, a seizure in a part of the brain that controls movement might cause an arm or leg to jerk. Second is the type of seizure. For instance, a seizure that affects more of the brain may affect more of the body.Learn more about Epilepsy ›