What is it?
Marijuana is the most frequently used illegal drug in the United States . Marijuana is a green, brown or grayish mixture of dried, shredded leaves, stems, seeds and flowers of the hemp plant. Marijuana and other drugs made from the same plant are also known as cannabis. All forms of cannabis are mind-altering and all contain THC (tetrahydrocannabinol), the main active ingredient in marijuana.

How is it used?
Most marijuana users roll loose marijuana into a "joint" - a cigarette, or smoke it in a pipe. Others mix marijuana into foods.

How does it affect you?
Marijuana's effect on the user depends on the potency of THC it contains. There are stronger forms of marijuana available to kids today than in the 1960s, which means stronger effects. There are serious consequences to marijuana use, especially by children, which include impairment of short-term memory, concentration and motor skills, critical for a child's intellectual and social development; greater likelihood of use of another illegal drug such as cocaine or heroin; increased likelihood of having unprotected sex or sex with multiple partners, leaving them at greater risk of pregnancy, AIDS and other sexually-transmitted diseases; possible long-term physical and psychological dependence and/or slowed reaction time, impaired coordination and decrease attention span, leading to increased highway accidents and fatalities.

Information on drugs facts come from a number of sources, primarily the National Institute on Drug Abuse and the Partnership For A Drug-Free America.