Coffee is the easiest way to get the most popular drug in the world – caffeine. 90% of adults consume caffeine in various forms. Although caffeine is also found in energy drinks or various food supplements, most people have coffee as its main source. Everyone knows that there is caffeine in coffee, but not everyone knows what its real effects on the body are, what the lethal dose of caffeine can be, and how caffeine affects our body. Caffeine even works differently in the smoker’s body than in the non-smoker’s body. Although you can find many nice articles about coffee around you, few people can tell you the really important information you should know about coffee and caffeine. Check out infographics from to tell you important information about caffeine in coffee.