Marijuana is a dry, shredded green and brown mix of leaves, flowers, stems, and seeds from the hemp plant Cannabis sativa. In a more concentrated, resinous form, it is called hashish, and as a sticky black liquid, hash oil. The main psychoactive (mind-altering) chemical in marijuana is delta-9-tetrahydrocannabinol, or THC. Learn more
Statistics and Trends
|Drug||Time Period||Ages 12 or Older||Ages 12 to 17||Ages 18 to 25||Ages 26 or Older|
- Marijuana: Facts for Teens
- Marijuana: Download the Facts Poster (Teaching Guide)
- Heads Up: Real News About Drugs and Your Body- Year 11-12 Compilation for Students
- Heads Up: Real News About Drugs and Your Body- Year 11-12 Compilation for Teachers
- Marijuana’s Lasting Effects on the Brain, (Message from the NIDA Director, September 2012)
- NIDA for Teens: Marijuana
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