March is National Brain Injury Awareness Month. Traumatic brain injuries are disruptions or changes in the way the brain functions that occur due to a blow or jolt to the head or penetrating injuries. The severity can range from mild to severe. Brain injuries are the most common cause of death and lifelong disability for children. According to data from the Level 1 Pediatric Trauma Center at Penn State Hershey Children's Hospital, the brain injuries that top the list are from sports, bike crashes, falls, or motor vehicle crashes.