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Marijuana and Health (1982) / Chapter Skim
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Pages 1-5

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From page 1...
... The IOM appointed a 22-member committee to: analyze existing scientific evidence bearing on the possible hazards to the health and safety of users of marijuana; * analyze data concerning the possible therapeutic value and health benefits of marijuana; assess federal research programs in marijuana; identify promising new research directions, and make sugggestions to improve the quality and usefulness of future research; and *
From page 2...
... With a severity directly related to dose, marijuana impairs motor coordination and affects tracking ability and sensory and perceptual functions important for safe driving and the operation of other machines; it also impairs short-term memory and slows learning. Other acute effects include feelings of euphoria and other mood changes, but there also are disturbing mental phenomena, such as brief periods of anxiety, confusion, or psychosis.
From page 3...
... This suggests the strong possibility that prolonged heavy smoking of marijuana, like tobacco, will lead to cancer of the respiratory tract and to serious impairment of lung function. Although there is evidence of impaired lung function in chronic smokers, no direct confirmation of the likelihood of cancer has yet been provided, possibly because marijuana has been widely smoked in this country for only about 20 years, and data have not been collected systematically in other countries with a much longer history of heavy marijuana use.
From page 4...
... Until l0 or l5 years ago, there was virtually no systematic, rigorously controlled research on the human health-related effects of marijuana and its major constituents. Even now, when standardized marijuana and pure synthetic cannabinoids are available for experimental studies, and good qualitative methods exist for the
From page 5...
... Recommendations for future research are presented at the end of Chapters l-7 of this report. CONCLUSIONS The scientific evidence published to date indicates that marijuana has a broad range of psychological and biological effects, some of which, at least under certain conditions, are harmful to human health.

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