Epilepsy is a brain disorder characterized by repeated seizures. Seizures occur when there is abnormal electrical activity in the brain. There are many types of seizures that can range from staring spells to violent shaking. While epilepsy is common, affecting about 1 in 100 people, it can often be controlled through medications. For those whose seizures cannot be controlled through medications, additional treatment options include dietary therapies, surgery, and devices like vagus nerve stimulators. With proper treatment, most people with epilepsy can lead normal, active lives.