外语题库22021-05-04

翻译题： It affects virtually all ages,genders,and socioeconomic groups in both developed and developing countries.

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外语题库22021-05-04

翻译题： No matter the cause,obesity is an escalating global epidemic.It substantially raises the probability of diseases,like diabetes,heart disease,stroke,high blood pressure,and cancer.

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外语题库22021-05-04

翻译题： Recent studies have also found a link between obesity and variations in the bacteria species that live in our digestive systems.

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外语题库22021-05-04

翻译题： Yet,our genetic makeup also plays a part.Studies on families and on separated twins have shown a clear causal hereditary relationship to weight gain.

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外语题库22021-05-04

翻译题： And scarce resources,and a lack of access to healthy,affordable foods creates an even greater risk in disadvantaged communities.

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外语题库22021-05-04

翻译题： Calorie-dense processed foods and growing portion sizes coupled with pervasive marketing lead to passive overeating.

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外语题库22021-05-04

翻译题： Adults should be getting at least 2. 5 hours of exercise each week,and children a whole hour per day.But globally,one in four adults and eight out of ten adolescents aren't active enough.

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外语题库22021-05-04

翻译题： In most cases,this imbalance comes from a combination of circumstances and choices.

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外语题库22021-05-04

翻译题： If the energy input from calories is greater than the energy output from physical activity,the body stores the extra calories as fat.

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外语题库22021-05-04

翻译题： So how does a person become obese?At its most basic,obesity is caused by energy imbalance.

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外语题库22021-05-04

翻译题： Athletes,for instance,have a naturally higher BMI.

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外语题库22021-05-04

翻译题： While BMI can be a helpful estimate of healthy weight,actual body fat percentage can only really be determined by also considering information like waist circumference and muscle mass.

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外语题库22021-05-04

翻译题： Obesity is a condition of excess body fat that occurs when a person's BMI is above 30,just over the overweight range of 25 to 29.9.

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外语题库22021-05-04

翻译题： A calculation called the BMI breaks it down for us.For example,if someone weighs 65 kilgorams and is 1. 5 meters tall,they have a BMI of about 2 9.

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外语题库22021-05-04

翻译题： What is the distinction between being overweight and being obese?

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外语题库22021-05-04

翻译题： By the mid 19th century,being excessively overweight,or obese,was recognized as a cause of ill health,and another century later,declared deadly.

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外语题库22021-05-04

翻译题： Sustained abundance of good food enabled a healthier population to boom economically.Output increased,and with it,leisure time and waistlines.

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外语题库22021-05-04

翻译题： Then,technological advances coupled with public health measures resulted in the betterment of the quantity,quality,and variety of food.

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外语题库22021-05-04

翻译题： The negative impacts of being overweight were not even noted in medical literature until as late as the 18th century.

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外语题库22021-05-04

翻译题： So when did body fat become problematic?

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外语题库22021-05-04

翻译题： With chronic malnutrition being the norm for most of human history,genetics evolved to favor fat storage.

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外语题库22021-05-04

翻译题： In prehistoric times,natural selection favored genotypes that could endure harsh conditions by stocking the most fat.

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外语题库22021-05-04

翻译题： The most basic function of bodily fat is self-storage of food reserves.

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外语题库22021-05-04

翻译题： The updated algorithm would be rolled out across its many territories over the next few months.

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外语题库22021-05-04

翻译题： Facebook said its analysis of hundreds of thousands of web pages helped it to identify those run by spammers.

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