New research shows that many young people report a sense of temporary relief following episodes of self-harm. But there are clear ways to help teens replace injurious behaviors with healthy ones.

Artificial intelligence is emerging as a key cybersecurity tool for both attackers and defenders.

AI algorithms can solve hard problems and learn incredible tasks, but they can't explain how they do these things. If researchers can build explainable AI, it could lead to a flood of new knowledge.