The study conducted in male mice found that bigger social tumbles are more stressful. Imaging of the mouse brain with key gene highlighted by blue stain. The University of Texas at Austin. Social ...

Editor: In our American society, people are ranked in a hierarchy in which those with certain identities are valued more than others. For people in higher-status categories, their lives are worth more ...

Children climbing their school’s social hierarchy can end up bullying their friends and friends-of-friends, say researchers. (Getty Images) Findings suggest why anti-bullying programs don't work ...