National Commission on Marihuana and Drug Abuse
Marihuana: A Signal of Misunderstanding
Chapter III
Social Impact of marihuana use
ASSESSMENT OF PERCEIVED RISKS
The Commission believes that marihuana. is perceived by the American public to present
the following risks to the public health:
- lethality
- potential for genetic damage or teratogenicity
- immediate adverse physical or mental effects
- long-term physical or mental effects including psychosis and "amotivation"
syndrome
- "addiction" potential
- progression to other stronger drugs, especially heroin
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