Dear Mehgit, 
Sorry to point our that virtually every soldier who is in combat gets PTSD!  PTSD and Dementia are indeed treatable but they are not so far curable diseases.  Yes it is a telling analogy.  We should put our energies in good places.  I think that we will always need some risk sports, the NFL and colleges should be prepared to set aside the money to treat football induced dementia and every mom and father should be careful to encourage less harmful sport, just as they must be careful of military recruiters in our schools!!  The VA has done a horrible job treating all the PTSD that we have caused doing corporate greedy bidding.