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求翻译In America, more than a third of the adult population is now obese (obesity being defined as h
In America, more than a third of the adult population is now obese (obesity being defined as having a body-mass index more than 30). This is nearly three times as many as in 1960, and half as many again as in 1990.
But the increase has been greatest among those known as the morbidly obese—that is to say those with a BMI of more than 40. As a proportion of the population they have increased in America by more than six times since 1960, and three times since 1990. They are now about 6% of adults.
In America, more than a third of the adult population is now obese (obesity being defined as having a body-mass index more than 30). This is nearly three times as many as in 1960, and half as many again as in 1990.
But the increase has been greatest among those known as the morbidly obese—that is to say those with a BMI of more than 40. As a proportion of the population they have increased in America by more than six times since 1960, and three times since 1990. They are now about 6% of adults.
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