你观察下,黑人运动员或名人的寿命作为整体比其他种族的人相对较短

Dennis Green, the Minnesota Vikings headcoach, dies at age 67

http://espn.go.com/nfl/story/_/id/17124739/dennis-green-former-minnesota-vikings-arizona-cardinals-coach-dies-age-67

基因?

饮食?

生活方式?

worn out early?

...