A once-robust H.I.V. treatment and prevention system, credited with saving hundreds of thousands of lives, has begun to ...

A couple from Utah face parental kidnapping charges after federal authorities said they took a 10-year-old child to Cuba in ...

Explore how gamification in classrooms engages students but may overshadow actual learning, revealing potential pitfalls and ...

The improved second-generation versions of Apple's ubiquitous trackers expand their range and add other features. Here's how ...