[B]The researchers' next steps are to look at whether the effects of hostility are reversible, and to conduct a similar study of a group of younger people, to get a sense of how early these effects can be seen. “We can intervene later,” says Kubzansky, “but wouldn't it be nice if they never get there in the first place?”

[C]Rosalind Wright, assistant professor of medicine at Harvard, notes that the lungs have been neglected in part, because there’s no clear-cut event like a heart attack to show evidence of their decline. But Wright and her colleagues, drawing on new data, say doctors need to pay more attention to lung function and talk about it with at-risk patients.

[D]Stress headaches, stress fractures, and stress-induced heart attacks are already well known to the general public. Now new research suggests that the lungs are vulnerable to the effects of stress as well.

[E]The results, despite their objectivity, may not entirely please doctors, whose time with patients is already tight. “Clinicians look for: ‘You have it or you don't,’” says Wright's fellow author Laura Kubzansky, an assistant professor in the department of society, human development, and health at the Harvard School of Public Health. “Psychological factors are not so simple. You can't say, ‘Oh, this is a non-hostile person’ in the way that you can say, ‘This is a nonsmoker.’ It makes the whole endeavor harder.”

[F]Recently, in the journal Thorax, they published one of the first studies to show that hostility is a risk factor for poor lung function among older men. The researchers found that men who were more hostile at the outset of the study suffered a more rapid rate of decline in their lung function than others. Moreover, the study found that damage to lung function from hostility was comparable to the amount of damage done by cigarettes, an effect even the investigators were surprised to see. That means, says Wright, “Just as smoking can hurt your lungs, harboring hostility may be harmful.”

[G]The researchers analyzed data from a long-term study of 670 men aged 45 to 86 whose hostility and lung function were measured several times during an eight-year period. Lung function was assessed using a spirometer, which measures subjects’ lung capacity and rate of airflow when they blow into a tube. Hostility, defined as a personality trait that leads to chronic anger, was measured by a widely used true-false questionnaire that assesses mistrust, resentment, and suspiciousness.

[H]Both Wright and Kubzansky say that this research has made them more focused on how people become hostile in the first place. “It changes the way I parent,” says Wright, who is the mother of two children. “When they get furious, I’ll sit down and have a conversation with each of them—one I wish I could have had myself when I was young—about how anger at his brother affects him, and about how it affects his brother.”

   (一)答题步骤及方法

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