From around 1,000 B.C. until after the American Civil War, the marijuana plant was the world's largest cash crop. Fabric, rope, lighting oil, paper, medicine, food oil, and a source of protein, were just a few of its uses (Overbeck, "Billion"). It's hard to imagine a plant this great had been outlawed. There have been many misnomers and lies that have been spread about the usage of marijuana. In Bruce Goldstein's book, Psychology, three major studies were conducted on the effects of long-time marijuana usage. These studies, one in each of Jamaica, Costa Rica, and Greece, all failed to find evidence of physical or psychological damage in long-time users. But others find that there is evidence that lung damage could occur as a result of chronic use(207). It is a common belief that marijuana causes damage to the brain cells, which causes memory loss, impairment and/or difficulty...