We don't even have the largest brains relative to body size — many birds have brains that make up more than 8 percent of their body weight, compared to only 2.5 percent for humans.

就身体比例而言，人类的脑容量依然不是最大的—许多鸟类的脑容量占其体重的8%，而人类只有2.5%。

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In theory, the less you weigh, the higher your VO2 Max should be, relative to body weight.

理论上，体重越轻，VO2的最大值就越高。

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Just a 10 percent increase in body mass index, a measure of weight relative to height, can cut a man's real earnings by 3.3 percent and a woman's by 1.8 percent, according to economists.

据经济学家介绍，体重指数(测量体重与身高比例的指标)上升10%，男性的实际收入就会下降3.3%，女性则会下降1.8%。

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Unfortunately, the recent Journal of the American Medical Association publication analyzing life expectancy correlations to one imperfect calculation of relative weight (BMI, the body mass index) distracts readers all-too-eager to cling to its implications that being chubby is actually better.

FORBES: Obesity: The New 'Just Say No' For 2013