Concerned over any fighter getting pugilistic dementia is a given.
I think that fighters like Hunt, Roy Nelson, Cabbage Corriea (and Sefo from K-1) are far more likely candidates (as in an order of magnitude 10x) for brain damage as a result of their fighting career than either Arlovski or Overeem are.
I don't even follow the line of reasoning. Both Andrei's and Alistairs brains are fully functional. That is they do EXACTLY what a Homo Sapien does when their brain is concussed. Their brains still shut down like a human beings brain does from blunt force trauma. They are PERFECTLY NORMAL.
Only the most fuctarded teenager get a warm and fuzzy talking Homo Sapien chin FUCTARDED BULLSHIT as a "positive". It is not except for with brain dead children.
Their is NO SUCH THING as a "normal" Homo Sapien brain that reacts from blunt force trauma like your Hunt's and Nelsons. It is NOT impressive that fuctarded kiddies are TOO STUPID to not understand that they DO NOT have solid chins. They ALREADY fucking have brain damage you RETARDS (just like you!).
A healthy brain shuts down on blunt force trauma TO PROTECT ITSELF. Jokes that like to get hit in the face for retarded children's entertainment are 100% already suffering serious brain damage regardless of your retarded ill placed heroism.
Nope, in reality, the dumb asses that are labeled by children as iron chins and too stupid to recognize their genus of Homo are by far the most likely to suffer brain damage from fighting!