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  3. There are more than 300 millions of us in the United States. and sometimes it seems like we’re all friends on Face book. But the

There are more than 300 millions of us in the United States. and sometimes it seems like we’re all friends on Face book. But the

admin2010-11-02  55
问题      There are more than 300 millions of us in the United States. and sometimes it seems like we’re all friends on Face book. But the sad truth is that Americans are lonelier than ever. Between 1985 and 2004, the number of people who said there was no one with whom they discussed important matters tripled, to 25 percent, according to Duke University researchers. Unfortunately, as a new study linking women to increased risk of heart disease shows, all this loneliness can be detrimental to our health.
     The bad news doesn’t just affect women. Social isolation in all adults has been linked to a series of physical and mental ailments, including sleep disorders, high blood pressure, and an increased risk of depression and suicide. How lonely you feel today actually predicts how well you’ll sleep tonight and how depressed you’ll feel a year from now, says John T. Cacioppo, a neuroscientist at the University of Chicago and coauthor of Loneliness: Human Nature and the Need .for Social Connection. Studies have shown that loneliness can cause stress levels to rise and can weaken the immune system. Lonely people also tend to have less healthy lifestyles, drinking more alcohol, eating more fattening food, and exercising less than those who are not lonely.
     Though more Americans than ever are living alone (25 percent of U.S. households, up from 7 percent in 1940), the connection between single-living and loneliness is in fact quite weak. "Some of the most profound loneliness can happen when other people are present," says Harry Reis, professor of psychology at the University of Rochester. Take college freshmen: even though they’re surrounded by people almost all the time, many feel incredibly isolated during the first quarter of the school year with their friends and family members far away, Cacioppo says. Studies have shown that how lonely freshmen will feel can be predicted by how many miles they are from home. By the second quarter, however, most freshmen have found social replacements for their high-school friends.  Unfortunately, as we age, it becomes more difficult to recreate those social relationships. And that can be a big problem as America becomes a more transient society, with and increasing number of Americans who say that they’re willing to move away from home for a job.
     Loneliness can be relative: it has been defined as an aversive (反感的) emotional response to a perceived discrepancy between a person’s desired levels of social interaction and the contact they’re actually receiving. People tend to measure themselves against others, feeling particularly alone in communities where social connection is the norm. That’s why collectivist cultures, like those in Southern Europe, have higher levels of loneliness than individualist cultures, Cacioppo says. For the same reason, isolated individuals feel most acutely alone on holidays like Christmas Eve or Thanksgiving, when most people are surrounded by family and friends.
Which two problems does loneliness cause?
选项
答案Rising stress levels and weakening immune system．
解析 根据题干关键词two problems定位到原文第二段第四句：Studies have shown that loneliness can cause stress levels to rise and can weaken the immune system．可知研究发现孤独导致压力上升和削弱免疫系统的两大问题。
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