The latest question for researchers studying the consequences of concussions isn't when student-athletes can safely get back in the game. It's how long to wait before they can return to class.
New research suggests concussion effects may linger weeks after symptoms of dizziness and headaches have disappeared. School-safety experts are focusing attention on the impact of concussions on classroom performance. A small study of 28 patients by New York University researchers published earlier this year in the journal Radiology found that brain changes could be detected up to a year after even one mild concussion.