Chronic Traumatic Encephalopathy (CTE)

http://en.wikipedia.org/wiki/Chronic_traumatic_encephalopathy
http://chronictraumaticencephalopathy.com/-
http://www.bu.edu/cste/about/what-is-cte/
http://www.bu.edu/cste/
http://www.sportslegacy.org/research/cte/
http://www.post-gazette.com/stories/news/health/scientists-hunt-for-ways-to-untangle-damage-of-cte-687414/
http://brain.oxfordjournals.org/content/early/2012/12/02/brain.aws307.full
http://www.cbsnews.com/8301-204_162-57565467/cte-evidence-found-in-retired-nfl-players-scientists-claim/
http://sports.nationalpost.com/tag/chronic-traumatic-encephalopathy/
http://topnews.ae/content/213889-head-hits-cause-cte-footballers-high-risk
http://www.theatlantic.com/health/archive/2012/05/how-to-diagnose-a-battered-brain-before-its-too-late/256877/
http://www.bumc.bu.edu/busm/2009/12/18/first-hockey-player-diagnosed-with-degenerative-brain-disease-caused-by-repetitive-brain-trauma/

Gladwell
http://wagesofwins.com/2013/02/24/malcolm-gladwell-should-college-football-players-sign-a-brain-damage-waiver/
http://www.newyorker.com/reporting/2009/10/19/091019fa_fact_gladwell
http://www.thedp.com/article/2013/02/gladwells-condemnation-of-football-raises-eyebrows
http://theconcussionblog.com/tag/malcolm-gladwell/
http://www.slate.com/articles/sports/intelligence_squared/2012/04/the_next_slate_intelligence_squared_debate_is_may_8_why_malcolm_gladwell_thinks_we_should_ban_college_football_.html
http://pennbrainstorm.blogspot.ca/2013/03/responsibility-malcolm-gladwell.html
http://technorati.com/sports/article/malcolm-gladwell-compares-dog-fighting-to/

Videos
http://www.youtube.com/watch?v=EWaPXzTDEDw