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Marijuana Myths, Marijuana Fact. A Review of the Scientific Evidence. LYNN ZIMMER and JOHN P. MORGAN. Lindesmith Center, New York, 1997. xvi, 245 pp. Paper, $12.95. ISBN 0-9641568-4-9.
Attitudes toward marijuana use have divided Americans for over two decades. In the early 1970s when marijuana use was widespread a presidential commission recommended that it be decriminalized. During the 1980s "zero tolerance" was shown toward the use of marijuana and other illicit drugs. This strategy was supported by parents' groups and scientists who argued that marijuana use was harmful, especially to the young, and hence was to be discouraged by all available means.
The authors of the book under review argue that the risks of marijuana use have been grossly exaggerated in support of zero tolerance. The book is a primer of "facts" to counter the "myths" that the authors believe have been promulgated by proponents of marijuana prohibition. It presents 20 "marijuana myths," followed in each case by "facts" based upon the authors' review of the scientific literature. The reader will need to consult other sources to better understand the argument, since the myths are represented by a selection of brief quotations at the beginning of each chapter.
The major problem with any presentation of "myths" and "facts" in this highly contested area is the uncertainty that still surrounds the effects of long-term heavy marijuana use. Such effects in humans have not been as...