Epilepsy is a brain disorder that causes seizures (when someone has a brief episode of staring into space, shaking uncontrollably or even collapsing). A seizure happens when there’s abnormal electrical activity in the brain. Nemours pediatric neurologists use the most effective, proven medications and treatments to help control and prevent seizures in kids, so they can do what kids do best — play, laugh and grow into the healthiest adults they can be.