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OPPONENT'S BRIEF Factual Proposition: Consuming marijuana is detrimental to one's health. Definition of key terms: 1. Consumption= Smoking or eating marijuana. 2. Marijuana= Psychoactive mind altering substance, also known as cannabis. 3. Detrimental= Serio ....

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.... but supported the idea that marijuana for the majority of its users was not detrimental to the health of the users brain, immune or reproductive system. In looking at all the reports that are published there are perhaps, random studies which may indicate greater toxicity of the drug. But in all of these cases, the research was flawed or inaccurate since the findings cannot be duplicated by other scientists. Contention I: Marijuana does not damage brain cells. A. Claim: Use of marijuana does not cause memory loss. 1. Grounds: In a recent study rhesus monkeys were exposed to the equivalent of 4-5 joints per day for an entire year without any a ....