Seizures can cause changes in your movements or feelings, levels of consciousness and behavior. A seizure is usually defined as a sudden, uncontrolled electrical disturbance in the brain.
When seizures happens continuously at the same time, it is called epilepsy. Most seizures last for 30 seconds to two minutes. If seizures last longer, emergency medical treatment is necessary.
Seizures may suddenly happen to almost any individual, or may happen after a person has infection, closed head injury or a stroke.