Beginning of Essay
An ongoing research project headed by associate professor of psychiatry Harrison Pope had one subject who had smoked every day for a long time. To participate in the research-which actually concerned not drug use but testosterone-he had to stop his use. The man ....

Middle of Essay
.... use of marijuana. Marijuana has many nicknames, including grass, pot, and weed. It is also called cannabis, a word that comes from Cannabis sativa, the scientific name for hemp. Effects Marijuana contains more than 400 chemicals. When smoked, it produces over 2,000 chemical that enter the body through the lungs. These chemicals have a variety of immediate, short-term effects. In addition, the repeated use of marijuana has been linked to a number of long-term effects short- Term Effects of marijuana include both psychological and physical reactions, known a s a high, consists of changes in the user's feelings and thoughts. Such changes are ....