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  3. Nobody likes stress. Not only can it cause sleepless nights and irritable days, we all suspect, at some level, that it can’t be

Nobody likes stress. Not only can it cause sleepless nights and irritable days, we all suspect, at some level, that it can’t be

admin2014-04-20  26
问题     Nobody likes stress. Not only can it cause sleepless nights and irritable days, we all suspect, at some level, that it can’t be good for our health. Now we can add another reason to reduce the stress in our lives; It may impair our thinking when we’re older, adding tarnish to the luster of our golden years.
    A recent study in the journal Neurology concludes that people who experience chronic psychological distress, such as anxiety or depression, are up to 40 percent more likely to develop mild cognitive impairment(MCI)than people not prone to distress. What is MCI? Well, it’s not dementia, but it does represent a measurable decline in thinking ability and may affect more than 30 percent of the older population. It was found that psychological distress did not appear to correlate with age, education, or gender. But people with higher distress scores tended to have more depressive symptoms. And those who are prone to chronic distress have been shown to be more likely to develop Alzheimer’s disease. They also are more likely to have their thinking decline at a faster rate.
    What this study doesn’t tell us is how chronic distress leads to the development of MCI. The authors of the study have some ideas: Perhaps being prone to chronic distress is one of the earliest signs of having MCI. I find this idea less than appealing, because it suggests that the horse is already out of the barn when it comes to chronic distress and the development of MCI. Fortunately, the authors believe there is a more likely explanation.
    Their leading theory is that stress has adverse effects on the parts of our brains that help us form and keep memories. They point out that there is evidence that stress has been shown to reduce our ability to form memories, and that severe stress—like post-traumatic stress disorder—may cause changes in the memory-forming parts of the brain. I find this a far more appealing theory, as it’s based on studies of how our brains work and gives us a chance to "turn things around" by dealing with chronic distress in a positive way.
    So for now, let’s focus on what we do know: that reducing the stress in our lives is good for lots of reasons. It’s good for our complexions, probably good for our hearts, and maybe even good for our brains.
In the author’s opinion, the new study______.
选项 A、failed to draw a firm conclusion
B、gave contradictory explanations
C、raised practical solution to mental diseases
D、shed some light on the problem concerned
答案D
解析 观点题。本题的解答需联系文章的最后三段。在这三段中，作者对研究者提出的关于压力导致认知障碍的不同解释进行了选择性分析。虽然没有定论，但是至少说明压力确实对健康不利，所以最后作者号召读者减轻压力。可见，他认为这项研究对大家讨论的问题还是给出了一些阐释。故[D]为答案。[C]“给心理疾病提供了可能的解决方案”与本文的话题偏离较远，排除。研究虽然未能解释原因，但还是认定压力的确会导致认知障碍，故[A]不符合原文语义。[B]“解释是自相矛盾的”显然误解了第三段和第四段的关系，这两段都是研究者提供的假说，都：不是确定的解释，故不存在相互矛盾的问题。
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