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別再煩惱體重了！科學(xué)家稱胖并不代表不健康
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2017/4/11 10:07:57

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別再煩惱體重了！科學(xué)家稱胖并不代表不健康

’Body mass index is NOT a good indicator of whether or not you’re healthy, researchers say

別再煩惱體重了！科學(xué)家稱胖并不代表不健康

People need to ditch the obsession with body mass index and rethink the way they judge obesity, a new report states.

據(jù)一項(xiàng)最新研究指出，人們應(yīng)該擺脫對體重指數(shù)的迷信，重新審視自己對肥胖的看法了。

Researchers from the University of Alberta say the metric, which measures a person’s body size from their weight and height, has become a benchmark in modern medicine.

據(jù)來自阿爾伯塔大學(xué)的研究人員表示稱，體重指數(shù)通過測量人的身高和體重來衡量一個人的體型，是現(xiàn)代醫(yī)學(xué)的一個基準(zhǔn)。

But body mass index (BMI) is not only a bad indicator of how healthy you are, it can lead to doctors prescribing the wrong treatment for patients, the scientists say.

但是科學(xué)家們表示稱，體重指數(shù)不僅不能說明你健康與否，還可能會導(dǎo)致醫(yī)生為病人制定錯誤的治療方案。

BMI first gained popularity in the 1970s as a way of judging body fat. A healthy BMI is typically measured between 18.5 and 24.9.

體重指數(shù)第一次被人們接受是在上世紀(jì)70年代，是一種衡量體脂的方法。健康的體重指數(shù)一般在18.5到24.9之間。

Anything under 18.5 is considered underweight. BMIs between 25 and 29.9 fall into overweight territory, and above 30 is considered obese.

體重指數(shù)低于18.5則會被認(rèn)為體重過輕，25到29.9之間則會被認(rèn)為過重，30以上就是肥胖了。

It is useful for tracking population trends in body weight, but has well-known limitations when applied to individuals, Dr Arya Sharma, an obesity researcher at the University of Alberta in Canada, told Live Science.

加拿大阿爾伯塔大學(xué)肥胖研究者艾麗婭·夏爾馬博士對Live Science表示稱，體重指數(shù)用來追蹤人口體重變化是有用的，但是眾所周知當(dāng)適用于個人的時候就有很多限制性。

For example, many professional athletes qualify as overweight or obese based on solely their BMI. But they have much more muscle mass, which weighs proportionally more than fat.

比如說，如果只看體重指數(shù)的話，許多職業(yè)運(yùn)動員都是過重或者肥胖。但是他們的肌肉要多得多，占比遠(yuǎn)超脂肪含量。

And while someone with a BMI of above 30 is considered obese by the metric, they may actually be perfectly healthy, metabolically speaking, according to Dr Sharma.

根據(jù)夏爾馬博士的說法，盡管某些人體重指數(shù)高于30并被認(rèn)為是肥胖，但是事實(shí)上從新陳代謝的角度來講他們可能非常健康。

Their blood pressure is normal, their livers are functioning well and their cholesterol levels are within normal limits.

他們的血壓正常、肝功能良好、膽固醇水平也在正常范圍之內(nèi)。

On the other hand, some people with BMIs below 30 have health problems if they were to lose weight.

但是另一方面，如果某些體重指數(shù)低于30的人減肥的話，他們可能會出現(xiàn)一些健康問題。

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