Chicago: Young men’s interest in babies is specifically associated with their physiological reactivity to sexually explicit material, according to new research published in Psychological Science, a journal of the Association for Psychological Science. 

Columbus: When it comes to emotional health, young couples – especially women -- do just as well moving in together as they do getting married, according to a new national study.

Washington: Whether you're territorial, a girlfriend stealer, or a cross dresser - when it comes to finding a partner, scientists have discovered that for some birds it's all in the genes.

Ithaca: Men have a reputation of doing just about anything to show off in front of women, no matter how seemingly absurd. That effort to impress apparently extends to their eating habits: A new Cornell study shows that men eat significantly more food when in the company of women – and such excess is motivated by a hardwired male urge to demonstrate prowess to the opposite sex, researchers suggest.

Montreal: Facebook can have positive and negative effects on teens levels of a stress hormone, say researchers at the University of Montreal and the Institut universitaire de santé mentale de Montréal. 

Durham: Being bullied in childhood has been associated with increased risk for anxiety, depression and even eating disorders. But according to new research, it’s not only the victims who could be at risk psychologically, but also the bullies themselves.