World’s favourite drug Well known for its effects on reducing tiredness and improving alertness, caffeine has emerged in the 21st century as the most popular psychoactive drug in the world. In this day and age, caffeine can be found in a variety of food products including coffee, tea, soft drinks, energy drinks, chocolates and others. Furthermore, since the isolation of caffeine from coffee beans in 1820, the therapeutic use of caffeine both as an additive to other drugs or as a stand alone tablet has gained attractiveness in various pharmacological applications. In North America, the most common source of caffeine…