With the increase in states legalizing marijuana, understanding the debate about marijuana is more important than ever. Learn about the movement to legalize, the arguments on each side, and what it means for patients, state economies, and legal systems. Examine issues including the history of the movement toward legalization in the United States, efforts toward legalization around the globe, the risks/benefits of marijuana use, how it works in the body, safety regulations, economic impact of legalization, problems surrounding patchwork legalization across the nation, and the dark side of marijuana: addiction.