Head injuries are a common cause of death in motor vehicle accidents. They often result from unbelted drivers or passengers who are ejected from the vehicle. These head injuries also occur to seat-belted passengers or even the driver when stuck directly, usually with a bigger vehicle such as an SUV or truck. Pedestrians can be struck by a motor vehicle and this can also lead to a head injury.
In the US, someone sustains a traumatic brain injury every 23 seconds. This is about 2 million people per year. Three hundred thousand people will need to be hospitalized because of head injuries and 99,000 will have a long lasting disability. A total of 56,000 people will die in the US per year. About 34 percent of all injuries resulting in death are due to a head injury.