Marijuana is a green, brown, or gray mixture of dried, shredded leaves, stems, seeds and flowers of the hemp plant.
Cannabis is a term that refers to marijuana and other drugs made from the same plant.
Marijuana is the most frequently used illegal drug in the United States. Nearly 69 million Americans older than age 12 have tried marijuana at least once. The average age of those first trying marijuana for the first time was 14 years. He tried surgery, pain killers and treatments promising to dull the pain that had been a part of his life since 1990, when he was run over by a car while on duty. Nothing worked, he said, until he tried marijuana in 1996.