A 1930's Bureau of Narcotics campaign warned that marijuana would cause teenagers to commit vicious crimes.

The bureau promoted a 1936 commercial film, "Tell Your Children," warning that marijuana caused teenagers to rape, murder and commit suicide.

This act was passed by Congress on the basis of testimony and public perception that marijuana caused insanity, criminality, and death.

Turner was forced to resign after announcing his conclusions in public that marijuana caused homosexuality, the breakdown of the immune system, and, therefore, AIDS.

Even marijuana can cause psychotic symptoms when ingested in sufficient dosage.

Unwittingly eating a loaf of bread laced with marijuana caused a Continental Airlines pilot to lose his job for two years, the airline says.

Anslinger launched a nationwide media campaign declaring that marijuana causes temporary insanity.

I remember thinking that I hadn't known before that marijuana could cause such a sudden distortion of space.

Alcohol, marijuana, methamphetamine, and heroin use also may cause gynecomastia.

Chase points out that if there is cadmium in the soil, the marijuana can cause all of these symptoms.