Wilfred Benitez, Jerry Quarry, Muhammad Ali and Bobby Chacon really got the short end of the stick on this one. At least Ali has his wealth and fame. The others have/had become largely forgotten, Quarry dying in poverty, Benitez in a nursing home in Puerto Rico, and Chacon, seen on the streets collecting cans for money (although this has changed and his situation is better). All suffer/suffered from Dementia or in Ali's case Parkinson's brought on by their careers.
Ron Lyle is an amazing exception. Took huge shots and stayed lucid- wasnt he an actor? His brain should be used for research
George Chuvalo doesn't appear effected by his boxing career at all. He's really had some bad things happen to him in his life, he makes speeches at colleges etc in Canada. His wife committed suicide as did at least one of his children, and they also got involved in drugs and prison. Poor guy
His speech problems are from the auto accident where he went flying off of a high way, over the edge of a mountain, and smashed into the only tree on the whole damn mountain. All of the other crap is due to his boxing career,