PAULO: OK, I am Paulo, from Rome, and she's Barbara -- she's my wife.</s>BARBARA: Hi.</s>PAULO: And we want to ask you why is so much people in America are so obese?</s>ELIZABETH COHEN, CNN MEDICAL CORRESPONDENT: All you have to do is look around you to see that all sorts of delicious fattening foods are all around us, they're inexpensive, and they're easily accessible. All you have to do is go through a drive-through, drive down any street in the United States, and you'll find fattening foods. Another reason why Americans are so obese is that exercise is not a much a part of our lifestyle as it is in other countries. In other countries, people walk to work, they walk to the market, they walk to school. But in the United States, people, pretty much, drive everywhere, and that can have a big impact on your body size. Now, what Americans need to learn how to do is to lose weight and keep it off. Americans have, to some extent, learned how to lose weight. But to keep it off means a lifestyle change, which is much harder than a diet.
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