According to the National Institute of Health, among children and adolescents under the age of 20, an average of 247 traumatic brain injury deaths and 140,000 head injuries are related to bicycle accidents each year. Head injuries can range from scrapes on the head to fractures of the skull—either of which can result in a brain injury. A concussion is a closed head injury, and the more serious form of concussion is a traumatic brain injury. A traumatic brain injury can keep the victim from ever leading a normal life again, including working and making a living.