“但如果他们希望别人觉得自己更有魅力的话，则需要减掉以上体重的两倍之多。”研究员发现，面部脂肪（通过面部感知重量）可以准确的反映一个人的身体质量指数（BMI）。

It is also a robust indicator of a person’s health, since higher facial adiposity is associated with a variety of health problems, from a compromised immune system to poor cardiovascular health.

它还能反映一个人是否健康，是否体能下降。因为过多的面部脂肪可能涉及一系列健康问题，从免疫系统恶化到心血管功能紊乱。

The study sought to determine at what point a change in the perception of facial adiposity occurs.

该项研究旨在解决人们何时会察觉到面部脂肪。

They created a collection of male and female faces between 20 and 40 years old, in which all of the subjects had neutral expressions, their hair pulled back and no facial adornments.

他们将一群20-40岁的男女集合起来拍照，并规定所有人都面无表情，头发梳至脑后，面部无任何修饰。

They also altered each image to create a sequence of photos showing a range of weights on a gradually increasing scale.

他们还按照从轻到重的程度，调整照片来创建序列。

study participants were asked to compare randomly drawn pairs of faces from each sequence and identify the heavier-looking one.

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