Good ol’ caffeine! It is the first duty of the day, that is to get my daily dose of caffeine via a cup (or more) of coffee. First isolated in coffee back in 1820, caffeine is the tacit drug of choice for millions as it can be found in numerous beverages and medications. However, not a lot of people stop to appreciate what caffeine actually is and what it does. The following infographic, discovered at Home Owners Insurance, provides some interesting details on this popular drug.