http://time.com/3852458/how-concussions-affect-school-grades/
In a study published in the journal Pediatrics, Danielle Ransom, a postdoctoral fellow in neuropsychology, and her colleagues found that children who had concussions may experience more problems concentrating, keeping up and paying attention in school. The symptoms are worse for students who have recently been injured, but remained significant even for those who had recovered…