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  3. (71) Experts have long thought that depression could be bad for your heart. A new study demonstrates just how dangerous it can b

(71) Experts have long thought that depression could be bad for your heart. A new study demonstrates just how dangerous it can b

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问题     (71) Experts have long thought that depression could be bad for your heart. A new study demonstrates just how dangerous it can be. Brenda Penninx, a gerontologist(老年病学家) at Wake Forest University, North Caroline, and her colleagues followed 2847 people over the age of 55-both with and without heart disease-for four years in order to trace the effects of depression.
    (72) In the end, they found that people with major depression were at least three times as likely to die of heart disease as were patients who weren’t depressed. Even subjects with mild depression a fatality rate that was 50 percent higher than normal.
    Brenda Penninx isn’t sure exactly what the connection between heart disease and depression is, but since depression can raise stress, and stress triggers an outpouring of the hormone cortis01(荷尔蒙肾上腺皮质素) , and this could cause heart rate and blood pressure to rise.
    Other factors could also play a part: Depressed people are less likely to do physical exercise or eat fight than those who do not suffer from the malady. "Depression deserves a lot more attention than it usually gets". Penninx warns. "It’s a huge risk factor, so it’s really crucial to take care of your emotions."
选项 A、Because they wanted to know their physical conditions.
B、Because the people all had heart disease.
C、Because they wanted to know how depression affect people hearts.
D、Because 50 % of the people died of heart disease.
答案C
解析 细节题。A项不对，从“A new study demonstrates just how dangerous it can be”可知，在这里，“It”指“depression”；根据本文的头两句，我们可知C项为正确答案；从“people over the age of 55 both with and without heart disease”我们知B项不正确；D项本文没有提到，从我们的常识也知道该项不可能对。
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