For parents of teenagers, adolescence can be challenging, but to a brain scientist it's a time of breathtaking development. And it's a "window of opportunity" on the way to becoming an adult.

Many parents are worried about their kids losing themselves for hours on their phones. Turns out, teens are troubled too. But they also know a lot about how to get unhooked. Here's how they do it.

New weight-loss medications and bariatric surgery have the potential to spare children health and social problems. But some parents think they're sending kids the wrong message about their bodies.