Dopamine is a chemical released in your brain and your body when you sleep that paralyzes your body so you don't act out your dreams. — Mike Birbiglia Copy Share Image
It turns out that dopamine is a chemical on double duty in the brain. Along with its role in motor commands, it also serves as the main messenger in the reward systems, guiding a person toward food, drink, mates, and… — David Eagleman Copy Share Image