Watch youth for Second Impact Syndrome

SAN DIEGO – Perhaps thanks to professional sports leagues, concussions have become a hot-button issue within the medical community. Rules changes in the National Football League were enacted to protect players not only from concussions, but from further injury after suffering a concussion.

Beginning with the 2010 season, NFL players who were diagnosed with a concussion during a game were not allowed to re-enter the game and were subjected to thorough testing in the days following to determine if they were allowed to play the following week. If they failed the tests, they were not cleared...