Washington: When it comes to adolescents with math and science homework, more isn't necessarily better -- an hour a day is optimal -- but doing it alone and regularly produces the biggest knowledge gain, according to research published by the American Psychological Association.

Columbus: When children are unmotivated at school, new research suggests their genes may be part of the equation.

Washington: Earaches in babies are not uncommon. But a baby’s inability to communicate symptoms can leave most parents feeling helpless. 

Washington: Characterizing associations between socio-economic factors and children’s brain development, a team including investigators from nine universities across the country reports correlative links between family income and brain structure. 

Montreal: Differences in the way children and adults perceive the world extend to their sense of safety in their social and physical environments and this in turn can impact their health, say researchers at the University of Montreal and its affiliated Research Centre at CHU Sainte Justine, a children’s hospital. 

Washington: Infants have innate knowledge about the world and when their expectations are defied, they learn best, researchers at Johns Hopkins University found.