Word: weights
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This artificial environment is most pervasive in the U.S. and other industrialized countries, and that's exactly where the fat crisis is most acute. When people move to the U.S. from poorer nations, their collective weight begins to rise. As developing areas like, for example, Southeast Asia and Latin America catch up economically and the inhabitants adopt Western lifestyles, their problems with obesity catch up as well. By contrast, among people who still live in conditions most like those of our distant Stone Age ancestors--such as the Maku or the Yanomami of Brazil--there is virtually no obesity...
Spurlock's critics--some of them paid operatives of the food industry--say it's no mystery that he gained weight force feeding himself Big Macs to the tune of 5,000 calories a day. One of his detractors put herself on an all-McDonald's diet and managed to lose 10 lbs. in 30 days, eating fewer than 2,200 calories a day. Her movie is due out in late summer...
...surface, this makes little sense. If the poor must struggle to buy groceries, how can they pack away enough to gain all that weight? The assumption used to be that the poor were making bad food and lifestyle choices--Krispy Kremes instead of crispy greens. But now researchers have begun to suspect that the blame lies elsewhere...
...that weren't complicated enough, the body must also regulate its food intake and manage its weight over time. "There are short-term signals and long-term signals," says Judith Korner, an endocrinologist at Columbia University in New York City. "Some signals are both short term and long term, and then there are medium-term signals...
That discordance can do a lot of damage. Himmelgreen tracked the weight of Puerto Rican women living in the continental U.S. and found that the longer they had been here and the better their English, the more they tended to weigh. "People's food habits change dramatically when they arrive," he says. "The weight gain can happen in a very short time...