Studies reveal a complex interplay of traits, genes, and brain structure behind the dual diagnosis—raising new questions about how we define and treat both conditions.

Attention-deficit/hyperactivity disorder (ADHD) is a common but complex neurodevelopmental condition characterized by symptoms of inattention, hyperactivity, and ...

Paris Hilton was diagnosed with attention-deficit hyperactivity disorder in her 20s and is trying to raise awareness and ...

If your mind never seems to shut off, it’s easy to assume you have anxiety—but that may not be the full story. This is ...