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TOPIC: ARGUMENT35 - The following appeared in the summary of a study on headaches suffered by the residents of Mentia.
"Salicylates are members of the same chemical family as aspirin, a medicine used to treat headaches. Although many foods are naturally rich in salicylates, for the past several decades food-processing companies have also been adding salicylates to foods as preservatives. This rise in the commercial use of salicylates has been found to correlate with a steady decline in the average number of headaches reported by participants in our twenty-year study. Recently, food-processing companies have found that salicylates can also be used as flavor additives for foods. With this new use for salicylates, we can expect a continued steady decline in the number of headaches suffered by the average citizen of Mentia."
Grounding on Salicylates(S) are members of the same chemical family as aspirin, supposing that S has the effect of allay headaches, and then synthesizing the steady decline in the average number of headaches reported and another factor that S can also be used as flavor additives, the author accordingly claims that we can expect a continued steady decline in the number of headaches suffered by the average citizen of Mentia. However, this argument relies on a series logical flaws and therefore inconvincible as it stands.
The author falsely assumes that S have the function of treat headaches because S and aspirin are members of the same chemical family. Common sense tells us that even the compounds consists of the same elements may also have very distinct functions. Charcoal and diamond both consist of the element C, but they are totally different. Demand is hard and precious, but charcoal is soft and common. Thus, the author needs provides more information to illustrate S's exact effects on people.
Even if S may allay headaches, the author's claim that the steady decline in the average number of headaches reported by participants in the study has correlation with the rise in use of S is unwarranted. Firstly, what the size of the sample in the study? The smaller the size, the less reliable the result is. Secondly, the respondents may not representative. Perhaps, they are all old people who might easily get headaches and forget to report when they had headaches. Finally, it is entirely possible that the decline is due to many other factors like a better lifestyle, the improvement of medical condition and so forth.
Though the decline has correlation with the use of S, the author also unfairly infers that continued steady decline will take place with the new use for S. Perhaps, the average number of headaches is very low and difficult to decline and the new use of S may bring little effect. Besides, the author provides no evidence that large use of S is safe. It is dangerous if someone is allergic with S and excessive S may cause potential problems like side-effects and drug resistance. Moreover, S cannot be used as flavor additives for all foods. It is possible that consumers don’t like the smell of S and won’t buy the food with S. Hence, the average number of headaches may not decline in the future.
In sum, the argument lacks credibility because the cited evidence accomplishes little toward supporting what the author maintains. To strengthen it, the author would have to demonstrate specific information about the exact function of S and provide thorough analysis to rule out all the possibilities that may weaken the argument. After all, wrong prediction will bring potential problems. |
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