New findings reveal diagnoses shared by children who threaten violence at school and underscore the importance of intervention.

Childhood adversity and stress can disrupt the brain's reward circuit, a study with mice shows.

All brothers and sisters have tensions or disagreements from time to time as they jockey for position in the family. But when one sibling victimizes another, there can be serious and ongoing harms.

Medicaid expansion led to a 1.5% increase in survival of children with cancer. That means 200 more children alive two years after diagnosis.

Some parents may reach for medication too quickly when children have low fevers, new national poll suggests.

An analysis of 72 childhood obesity prevention programs implemented in rural schools shows one combo works best.

"The patients are sick not because of the virus," says Jean-Laurent Casanova. "They're sick because they excessively respond to the virus."

"The patients are sick not because of the virus," says Jean-Laurent Casanova. "They're sick because they excessively respond to the virus."