Only 6% of mass murders are committed by women. From poison to family ties, here’s how female killers differ from men.

Teen sleep quality is influenced by parents’ mental health and household conflict, according to a large study. Screen time explains part of the link, but family dynamics play a key role.

Commercials from prescription drugs by Big Pharma copmanies have become a regular part of the American television experience.

A Beijing military show rekindles debate, but this analysis says the new world order is already here: a fluid, multipolar system led by the U.S., China, and Europe.