Dopamine is often misperceived as the pleasure chemical, or the happy hormone. But it’s not. Dopamine is the wanting chemical. It’s activated by anticipation. In a steady amount, it boosts our mood.

A new study shows dopamine isn’t the brain’s movement “gas pedal” after all. Instead of setting speed or strength, it quietly enables movement in the background, much like oil in an engine. When ...

A couple of years ago, Jan Haavik was at a routine meeting of a research group that connects scientists studying attention deficit hyperactivity disorder (ADHD) with people who live with the condition ...