This psychoactive drugA name for a wide variety of chemical substances capable of altering the function of your mind and body in significant ways. These can include over the counter prescriptions, alcohol, and controlled substances. Most drugs are either physically and/or psychologically habit-forming. More from the Cannabis plant is perhaps the most common recreational drug in the world. It has strong medicinal benefits but can also cause physical harm and psychological dependence. Marijuana has a much lower social stigmaEvery addiction carries with it a certain amount of disapproval, which can also lead to discrimination. This is known as stigma. This can vary greatly following the specific addiction. More than in the past and is now legal in many countries and U.S. states.