Young athletes are sustaining more sports-related c0ncussions, according to studies released Monday by the American Academy of Pediatrics (AAP). http://pediatrics.aappublications.org/cgi/content/abstract/peds.2010-2005v1 The AAP found that emergency room visits for concussions for children eight to 13 had doubled from 1997 to 2007, and that concussions soared…