問題詳情：
In the age of the social network, there’s definitely such a thing as sharing too much; when it comes to losing weight, sharing could be key, though.
A new Northwestern University study published in the Journal of the Royal Society Interface found that those who had an active hand in such online communities lost a higher percentage of their body weight compared to users who participated sparingly.
Scientists analyzed data from people paying a membership fee on Calorieking. Com, which permits them access to weight-loss tools (like a food journal) and an online club. While the identity of each user remained confidential, the researchers had access to age, sex, height, initial weight and time-stamped activities. They could also monitor members’ recorded weigh-ins, friend requests and community arrangement, though they could not read any of the actual conversations between users.
The researchers discovered that the users who recorded their weight and established close relations with other members were more likely to achieve their goals of ridding themselves of pounds. The most active users lost more than 8 percent of their body weight in a six-month period. The least active users, those with the fewest online friends and social interactions, lost around 5 percent of their body weight in the same period of time. The researchers theorize that participation plays a key role in weight loss because it offers an always-accessible network of support.
They’re also looking ahead: The positive results point to sensible uses for social networks in other areas of health. Online communities might be successful alternatives for minor illnesses like discouragement and alcoholism, for which in-person meetings are often suggested. “Modern life is so complex and stressful, and to go somewhere for a meeting is often not practical,” Luis A. Nunes Amaral, senior author of the study, said in a statement. “It is hopeful that this alternative approach of going online for support could work.”
42. In which column of a magazine should the text be seated?
A. Entertainment. B. Fitness. C. Technology. D. Medicine.
would lose more weight according to the new study?
A. People frequently making online friends.
B. Network users sparing time to surf the Internet.
C. Members affording payments on .
D. Fellows regularly taking part in community activities.
44. What can we learn from the 4th paragraph?
A. Scientists ought to pay for the online data they study.
B. Researchers can manage to know more of the users besides their names.
C. People’s active online communications matter in their losing weight.
most active users lost 3% more of their weight than the least active ones within half a year.
is Amaral’s attitude toward online communities?
A. Anxious. B. Optimistic. C. Undoubted. D. Impractical.
【回答】
BACB
知識點：科普環保類閲讀
題型：閲讀理解
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