Current thinking is that women distribute the fat below the waist because it's a fat storage depot for pregnancy and lactation.

流行观点认为女性,把更多脂肪储存在腰以下,是为怀孕和哺乳提供脂肪储存

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It's the way to store energy in a place that protects it, packs it away, and keeps it for pregnancy and for nursing the baby, so it's very important from a reproductive point of view.

这样把能量储存在一个地方,保护起来,为怀孕和养育孩子备用,从生殖观点来看这是很重要的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选