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JEFFREY BROWN (Newshour): How tough is too tough when it comes to sports and brain injuries? It's an issue we have followed over a number of years. Today, there was new data to chew on.
Week after week, the big hits keep attracting big TV audiences to professional and college football. But concerns over head injuries in football and other sports have also continued about a connection between repeated blows and a degenerative brain disease known as chronic traumatic encephalopathy, or CTE.
The latest evidence comes from a new report from Boston University that's been published in the scientific journal "Brain." The four-year study examined brain autopsies of 85 male donors ranging from age 17 to 98. It included football players at various levels, boxers, hockey players and a group of veterans.
They have found evidence of CTE in 68 cases, almost all of them athletes. The football players included linemen, running backs and tight ends who had received repeated hits throughout their careers. One was the late John Mackey, profiled with his wife, Sylvia, in 2009 by Ray Suarez.
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