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Argument 167
A folk remedy* for insomnia, the scent in lavender flowers, has now been proved effective. In a recent study, 30 volunteers with chronic insomnia slept each night for three weeks on lavender-scented pillows in a controlled room where their sleep was monitored. During the first week, volunteers continued to take their usual sleeping medication. They slept soundly but wakened feeling tired. During the second week, the volunteers discontinued their medication. As a result, they slept less soundly than the previous week and felt even more tired. During the third week, the volunteers slept longer and more soundly than in the previous two weeks. This shows that over a short period of time lavender cures insomnia.
*A folk remedy is usually a plant-based form of treatment common to traditional forms of medicine, ones that developed before the advent of modern medical services and technology.
1) 1)Control group isn’t set up, a lot of other possibilities may happen. For example, a normal person who is tested and monitored becomes nervous as well. Compare control group with experiment group, we can see if it is lavender flower making their sleeping better. No matter who sleep
2) 2)In the study, volunteers both use sleeping medication and lavender-scented pillows. We couldn’t know it is medicine or lavender-scented pillows works or have an good effect on curing insomnia. And also anyone who do not sleep well for nearly two weeks should have sound sleep.
3) 3)Three weeks is too short to test the function of lavender scent.
TOPIC: ARGUMENT167 - A folk remedy* for insomnia, the scent in lavender flowers, has now been proved effective. In a recent study, 30 volunteers with chronic insomnia slept each night for three weeks on lavender-scented pillows in a controlled room where their sleep was monitored. During the first week, volunteers continued to take their usual sleeping medication. They slept soundly but wakened feeling tired. During the second week, the volunteers discontinued their medication. As a result, they slept less soundly than the previous week and felt even more tired. During the third week, the volunteers slept longer and more soundly than in the previous two weeks. This shows that over a short period of time lavender cures insomnia.
*A folk remedy is usually a plant-based form of treatment common to traditional forms of medicine, ones that developed before the advent of modern medical services and technology.
WORDS: 359
TIME: 00:50:00
DATE: 2009-7-16 12:18:32
In this argument, the author recommends that over a short period of time lavender cures insomnia. To support this recommendation the author cites a recent study which includes 30 volunteers with insomnia. The study shows that in the third week the volunteers have a sound sleep. Well-presented and seemingly logical thought at first glance, close scrutiny of the study reveals that it lends little credible support for the author's assertion. I find this conclusion specious, on several grounds.
As a threshold matter, one problem with the argument is that there is no control group for the study. We all know even ordinary person will be nervous when he becomes tested and monitored. Also in common sense, anyone didn't sleep well for nearly two weeks should have a sound sleep. Only through comparison, we can see if it is the lavender scent works on insomnia, not the environment or other factors. Without ruling out all other such factors and providing us data of control group, it is unfair to make such a hasty conclusion.
Another point short of legitimacy in the study is that the experiment makes the volunteers use both sleeping medication and lavender-scented pillows.
Then we all couldn't know which one play a vital role in curing the insomnia. Maybe in the third week sleeping medication just have an effect on insomnia. And the lavender is useless. A study of single factor about lavender is actually needed. Any of these scenarios, if true, would undermine the author's conclusion.
Finally, we all wonder if three weeks are enough. The fundamental causes of the volunteers' insomnia are not found out and the exact function of the scent is unclear. These volunteers may still stay awake all night or have difficulty to be asleep after the study. More work needs to be done before the author get the conclusion.
In sum, the recommendation relies on certain doubtful assumptions and ill-logical reasoning that render it unconvincing as it stands. More study on the lavender scent should be done, especially a control group should be set up to rule out some other factors. Therefore, any final conclusion should not be drawn unless more detailed and convincing evidences are available.
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