Study finds the brain's reward system responds to tempting food cues even after people feel full, suggesting overeating is habitual.

A study found that vaporized cannabis rapidly increases food intake by activating brain reward circuits rather than true hunger signals. Participants and rats ate more even when full, and blocking ...

In our day-to-day lives, we're constantly making a slew of decisions, from immediate matters to prospects on the far horizon. But the evolutionary nuts-and-bolts of how our brains weigh these numerous ...

Positive thinking may boost the body’s defenses against disease. Increasing activity in a brain region that controls motivation and expectation, specifically the brain’s reward system, is linked with ...

Editor’s note: The podcast Chasing Life With Dr. Sanjay Gupta explores the medical science behind some of life’s mysteries big and small. You can listen to episodes here. (CNN) — If you are like many ...

I was a third-year medical student at Northwestern on my ICU rotation the first time I saw a dopamine drip. The patient was pale and motionless, his blood pressure dropping by the minute despite large ...