Caffeine is a mysterious substance, full of contradictions. It's the energizing agent we all love, yet the anxiety-inducing nemesis we all hate. It's the morning pick-me-up, the late-night party drug, the ultimate productivity booster, and the ultimate productivity killer.
From the ancient civilizations of South America, where coffee plants were revered as sacred, to the modern-day coffee shops of Manhattan, caffeine has been a staple in human culture. But have you ever stopped to think about the science behind the buzz?