Logic Breakdown

Passage Summary: Herbal remedies take a long time to work, but taking them every single day for months can be poisonous. To fix this, the herbalist suggests taking a short break from the medicine every now and then.

Conclusion: Some individuals who take herbal medicines every day should periodically skip their doses for a day or two to allow their bodies to recover.

Reasoning: Herbal medicines often require several months of consistent use to be effective, but taking them daily for that long can result in toxic side effects.

Analysis: The herbalist is assuming that these short breaks actually solve the toxicity problem without ruining the medicine's effectiveness. If skipping a day or two doesn't actually give the body enough time to 'recuperate,' the advice is useless. Similarly, if skipping a day resets the 'several months' clock needed for the medicine to work, the advice is counterproductive. Look for an answer that bridges the gap between taking a break and successfully avoiding toxicity while maintaining efficacy.

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18.

Which one of the following is an assumption required by the herbalist's argument?

Correct Answer
A
A is necessary. If no daily users take herbal medicines long enough to have side effects, then the recommendation that ‘at least some people who use herbal medicines daily’ should skip doses would have no one it applies to. Negation test: If no daily users use them long enough to have side effects, the argument’s conclusion collapses.
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