A study out of the University of Montreal has found that kids who have suffered previous head injuries are at an increased risk for future head injuries. Dr. Bonnie Swaine says that children with head injuries were almost twice as likely to have a repeat head injury compared to kids who had suffered other injuries, like sprained ankles or wrists. Swaine said that the data indicated two risk factors for head injuries: previous head injury and being a young boy.

Previous Head Injuries a Risk of Subsequent Head Injuries in Children: Study