Contents

• What is marijuana? Are there different kinds?
• How is marijuana used?
• How long does marijuana stay in the user's body?
• How many teens smoke marijuana?
• Why do young people use marijuana?
• What happens if you smoke marijuana?
• What are the short-term effects of marijuana use?
• Does marijuana affect school, sports, or other activities?
• What are the long-term effects of marijuana use?
• Does marijuana lead to the use of other drugs?
• How can you tell if someone has been using marijuana?
• Is marijuana sometimes used as a medicine?
• How does marijuana affect driving?
• If a woman is pregnant and smokes it, will marijuana hurt the baby?
• What does marijuana do to the brain?
• Can people become addicted to marijuana?
• What if a person wants to quit using the drug?
• References

NIH Publication No. 04-4037
Printed 1995; Revised November, 1998; Reprinted April, 2001; Revised March, 2003, Revised September, 2004, Revised March 2008

For more information on marijuana and other drugs, contact:
National Clearinghouse on Alcohol and Drug Information
P.O. Box 2345
Rockville, MD 20847
1-800-729-6686
TDD 1-800-487-4899

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Marijuana: Facts for Teens (Revised)

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• text only version
• pdf version

La marihuana - Información para los adolescentes (Versión Revisada)

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Marijuana: Facts Parents Need to Know (Revised)

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• text only version
• pdf version

La marihuana: Lo que los padres deben saber (Versión Revisada)

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These publications may be reprinted without permission.