Epilepsy is a common condition that affects the brain and causes frequent seizures. Seizures are bursts of electrical activity in the brain that temporarily affect how it works. They can cause a wide range of symptoms. Epilepsy can start at any age, but usually starts either in childhood or in people over 60. Epilepsy can be caused as a result of a brain injury, and sometimes it runs in the family. However, in 60% of all cases the cause is unknown. Approximately 65 million people worldwide have epilepsy, making it one of the most common neurological diseases globally.Watch the videos to learn more facts about epilepsy.