
Every day, hundreds of millions of people wake up and immediately get high. Of course, their drug of choice is caffeine, meaning this is socially acceptable behavior that is even encouraged by workplaces, which often provide it for free. Caffeine consumption is so prevalent most people don't even think of it as drug use, even though this is a substance that profoundly affects mood, digestion, sleep and many other biological processes. It can even be hard to quit, triggering cravings and headaches for people with strong dependency. (At least coffee has been linked with many health benefits.)
Some estimates warn that 50 percent of the land used to grow coffee will be unproductive by 2050.