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TOPIC: ARGUMENT105 - The following appeared in a health newsletter.
"According to a recent study, people with many social ties report catching colds less often than do people with few social ties. Consequently, researchers conclude that having an active social life probably helps strengthen the immune system. The researchers note that catching a cold-one of a family of highly contagious viruses-gives the cold-sufferer temporary immunity to that virus in the future, but not to the many other related viruses. Merely being exposed to a new cold virus, however, is not enough for a person to catch a cold, since a strong immune system can successfully fight off some new viruses. Thus, in order to prevent catching a cold, people should strengthen their immune systems by becoming more active socially."
WORDS: 468 TIME: 00:30:00 DATE: 2008-4-1 13:13:25
In this newsletter, the arguer claims that people should strengthen their immune system by attending more social actives. To bolster this suggestion, the author cites a report showing that people who are more active are less susceptible to cold. Also, the author gives his/ her own explanations about this phenomenon. However, by resting on a series of unsubstantiated evidence and deduction, this argument is not warranted as it stands.
To begin with, the study cited by the author indicating that people engaging in more social activities reported less suffering from cold has nothing toward fortifying the author's conclusion. The evidence provided by the author is too vague to be convincing. To better support this argument, additional evidence includes a large sample consisting of most conditions have to be offered. Otherwise, I just can not accept the author's assumption.
Secondly, even I concede that people who take part in more social activities have less probability to suffer from cold, the author fail to establish a strong causal relationship between the former and the latter. High correlation indicating a causal relationship is a false assertion in itself. In order to support the claim, comprehensive research should be taken including many other factors responsible for this particular phenomenon. It is quite possible that people involved in this study are stronger and less vulnerable to cold themselves. Or perhaps most of those reported less suffering from cold exercise more in everyday life. Without ruling out these other factors, I just can not accept the author's conclusion.
Finally, another striking problem against the author's advice is that a serious logical flaw exists in the explanation provided by the author. The speaker asserts that by engaging in more social activities, people will be contagious with diverse kinds of viruses, rendering the immune system stronger, therefore, the ability to fight for cold improves. According to the author, one should first catch various kinds of cold, by defending them, the immune system becomes stronger, and then the possibility for suffering from cold next time decreases. This argument is ridiculer for people already suffer from many kinds of colds, violating the primary intention. In this way the author actually confuses the means defending cold through improving immune systems with the intention about catching fewer colds. Or rather, the author just views improvement of immune system as the final goal instead of catching fewer colds.
In conclusion, this argument can not persuade me to accept the claim. To better evaluate this suggestion, the author has to provide more sufficient evidence representative of all people from diverse locations and all levels of age showing that the more social activities participated in, the less like hood of cold will be caught. The author also needs to establish a clear causal relationship between these two matters and give us a more reasonable explanation.
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