That same study found that randomly assigned interracial roommates at Ohio State broke up before the end of the quarter about twice as often as same-race roommates.
Those who began smoking within a month of the study's start were four times as likely to be depressed at the study's end than those who did not begin smoking.
Kosovo has extended a warm welcome to U.S. Secretary of State Hillary Clinton, as she closed out a three-nation tour of the ethnically splintered Balkans.
On Sunday, Ghana managed to beat Serbia, scoring a penalty toward the end of the game after a Serbian defender leaped to head the ball but it struck his outstretched hand instead.