Word: wang
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Managing editor Wang Shuo also said he was leaving the magazine. Staffers were told on Monday that they had until Wednesday to decide whether they wanted to leave to join Caixin, which will be a weekly magazine. The extent of the exodus of Caijing staffers is unclear, although people close to the magazine indicate a strong support for Hu's move and confidence that the new venture would be built on the independent model of the old one. "We were told that we will be doing the same thing, just with a different name and a different office," says...
...amount of physical activity among U.S. teens has not in fact changed significantly over the past two decades, even while that population has gotten heavier. "On the one hand, we have seen the obesity-prevalence increase, but we don't see a decrease in physical activity," says Dr. Youfa Wang, an associate professor at the Center for Human Nutrition at Hopkins and lead author of the study. "This suggests that physical activity is not a good explanation for the increase in prevalence of obesity...
...body takes in and the calories it burns off. As far as the average U.S. teen is concerned, the study suggests, the culprit behind weight gain is not a decrease in exercise but an increase in consumption. Of course, that doesn't mean teens are getting adequate exercise: Wang analyzed data from nearly 16,000 high school students between the ages of 15 and 18, who took part in the Centers for Disease Control and Prevention's longitudinal Youth Risk Behavior Surveillance Survey, about their physical activity. He and his team found that in 2007, only 34.7% of teens...
...does this mean that exercise isn't important in controlling weight? As tempting as that conclusion might be, Wang and other health experts say that's not exactly what the new data show. The findings may say less about the role of exercise by itself than about the other variable in the weight equation - diet - and the interaction of the two. While exercise may not contribute directly to weight loss, it is critical for maintaining a healthy weight, since it helps calibrate the balance between energy taken in and energy burned off. "The data is too gross, and too general...
Still, the study highlighted some encouraging trends. For instance, the percentage of teens who spent more than three hours a day in front of the TV dropped from 1999 to 2007, from 43% to 35%. While Wang acknowledges that students may simply be substituting computer or other sedentary screen time for television-viewing, he notes that it's still a trend in the right direction. Far from being an excuse not to exercise, Wang sees the data as a wake-up call for parents and teens. "The important message is that compared to the recommendations for physical activity, the physical...