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閱讀理解。
     A new study suggests that the more teenagers watch television, the more likely they are to develop
depression (抑郁癥) as young adults.
     The researchers used a national long-term survey of healthy young teenagers of about 13-16 to find
out the relationship between media (媒體) use and depression. They based their findings on more than
4000 young teenagers who were not depressed when the survey began in 1995.
    As part of the survey, the young people were asked how many hours of television or videos they
watched daily. They were also asked how often they played computer games and listened to the radio.
Here was the result. The young people spent five and a half hours a day using media and more than 2
hours of that was spent watching TV.
    Seven years later, in 2001, more than 7% of the young people had signs of depression. The average
age at that time was 21. Brian Primack at the University of Pittsburgh medical school was the lead author
of the new study. He says every extra hour of television meant an 8% increase in the chances of developing
signs of depression.
     The researchers say they did not find any such relationship with the use of other media such as movies,
video games or radio. But the study did find that young men were more likely than young women to develop
depression given the same amount of media use.
     Doctor Primack says the study did not find out if watching TV causes depression directly. But one
possibility, he says, is that it may take time away from activities that could help prevent depression, like
sports and social activities. It might also prevent a person from sleeping well, he says, and that could have
an influence.
     The study was just published in the Archives of General Psychiatry.
     In December, the journal Social Indicators Research published a study of activities that help lead to happy
lives. Researchers from the University of Maryland found that people who describe themselves as happy
spend less time watching television than unhappy people. The study found that happy people are more likely
to be socially active, to read, attend social services and to vote.
Process of the study Details
The purpose of the research To find out 1_______ between media
use and depression.
At the beginning of the research 2_______ was made among over 4000 young
people who were not depressed.
The result of the survey These young people spent five and a half hours a
day in using media and they spent over 2 hours or
that 3_______
Seven years later Researchers found 7% of the young people had a
sign of depression. Every extra hour of watching TV
meant an 8% increase in the chances of developing signs
of depression.
Results of the study 1. Watching TV might have 4_______ and it may take time
     away fromactivities and sports.
2. Young men get more chance than young women
    to develop depression.
3. The reason some people get depression is that 5_______
1. relationship 
2. A survey
3. watching TV
4. help prevent depression 
5. they spend more time watching television
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