Mike Haynes

Duerson's brain was damaged, study shows

Duerson's brain was damaged, study shows

For the family of Dave Duerson, the announcement Monday that scientists found signs of damage in his brain may shed some light on the Chicago Bears star's erratic behavior.

But for the National Football League, the findings add to questions about whether the ultimate cost of playing the sport could be higher than anyone imagined and whether the NFL should do more to protect its players.

Before shooting himself in the heart in February at age 50, Duerson expressed the wish that his brain be studied for signs of disease. On Monday, scientists at Boston University who examined Duerson's brain tissue said he suffered...