Is Caffeine Dangerous? Your Brain on Coffee | Serving Up Science

An estimated 2.25 billion cups of coffee are enjoyed worldwide per day. What does caffeine do to our bodies that makes us perk up and give us a mood boost? More than you might realize! Discover the chemistry of caffeine and why it’s the world’s most consumed psychoactive substance. Sheril is joined in the kitchen by David Lowry, evolutionary plant biologist and self-proclaimed coffee addict.