Word: marijuana
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Dates: during 1970-1979
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Immunity. Some studies have shown a marked reduction in white blood cell response, the body's prime defense against infection, in marijuana smokers...
...number of psychological problems have also been associated with marijuana use. The most common is described as "acute panic anxiety reaction." It is seen most frequently in inexperienced users,, but can also follow an unexpectedly high dose. Transient feelings of mild paranoia are fairly common in users, especially those who are anxious about the experience to start with...
Prolonged or long-term effects of marijuana use are an area of much dispute. There have been reports of psychotic reactions, personality change, impaired learning ability and development of a chronic lethargy. By no means all doctors are convinced, however, that marijuana is the real cause of these reactions...
...scientific studies of marijuana are uncertain, the studies on cocaine are even more mysterious. When the drug's active ingredient was chemically isolated in the 1860s, doctors soon found that cocaine was valuable as a local anesthetic. They also found that it acted as a very pleasant stimulant. Young Sigmund Freud used it and advocated it: "The psychic effect consists of exhilaration and lasting euphoria...
Neither cocaine nor marijuana in commonly used dosages causes withdrawal symptoms when use is stopped. Many doctors believe, however, that some people can easily become psychologically dependent on the two drugs and the effects they produce...