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Researchers have established that when people are mentally engaged, biochemi
Researchers have established that when people are mentally engaged, biochemi
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2023-11-23
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问题
Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act more effectively areas such as attention and memory. This is true regardless of age.
People will be alert and receptive if they are faced with information that gets them to think about things they are interested in. And someone with a history of doing more rather than less will go into old age more cognitively sound than someone who has not had an active mind.
Many experts are so convinced of the benefits of challenging the brain that they are putting the theory to work in their own lives." The idea is not necessarily to learn to memorize enormous amounts of information," says James Fazard, associate director of the National Institute on Aging." Most of us don’ t need that kind of skill. Such specific training is of less interest than being able to maintain mental alertness." Fozard and others say they challenge their brains with different mental skills, both because they enjoy them and because they are sure that their range of activities will help the way their brains work.
Gene Cohen, acting director of the same institute, suggests that people in their old age should engage in mental and physical activities individually as well as in groups. Cohen says that we are frequently advised to keep physically active as we age, but older people need to keep mentally active as well. Those who do are more likely to maintain their intellectual abilities and to be generally happier and better adjusted." The point is, you need to do both," Cohen says." Intellectual activity actually influences brain-cell health and size." [br] The findings of James and other scientists in their work______.
选项
A、remain a theory to be further proved
B、have been challenged by many other experts
C、are practiced by the researchers themselves
D、have been generally accepted
答案
C
解析
推理题。本题询问James和其他科学家们的理论现在处于一种什么样的状态,文章第三段的第一句话“Many experts are so convinced of the benefits of challenging the brain that they are putting the theory to work in their own lives.”就说明James等人的这种研究结果还不曾被前人验证过,而科学家们自己也正把它付诸于实施。所以选项C为正确答案。同时,从这一段话中还可看出科学家们自己正把
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