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. 

Oxford: Wild birds will sacrifice access to food in order to stay close to their partner over the winter, according to a study by Oxford University researchers.

Oslo: Few visual impressions can be compared to humans’ interest for faces. New research suggests that our brain rewards us for looking at pretty faces.

Durham: Despite efforts to increase gender diversity in cardiology, major differences in job characteristics and pay persist between men and women who treat heart patients, according to a Duke Medicine-led study presented at the annual American Heart Association meeting.

Chicago: Many families believe religion plays an essential role in childhood moral development. But children of religious parents may not be as altruistic as those parents think, according to a new international study from the University of Chicago published recently in Current Biology.