effects of cannabis have been studied, there remains much to be concluded; debated topics include the drug's addictiveness, its potential as a "gateway drug", its effects on intelligence and memory, and its contributions to mental disorders such as schizophrenia and depression. On some such topics, such as the drug's effects on the lungs, relatively little research has been conducted, leading to division as to the severity of its impact. However, a government study on the long term lung-related effects…
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