Caffeinated with Murray Carpenter

Caffeine is the most important drug that no one is willing to label. Across its forms–whether coffee, tea, coke, or energy drinks–93% of Americans report regular caffeine use. Abdul reflects on caffeine’s highs and lows. Then he sits down with Murray Carpenter, journalist and author of “Caffeinated: How our Daily Habit Helps, Hurts, and Hooks Us.”