This is why men suck-in their guts, brag, and show off… and why women wear makeup, do their hair, and shop all day for their clothes.

这就是男人为什么表现勇敢，吹牛，作秀，和女人化妆，做头发，整天买衣服。

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A barber today does not cut a boy's hair in the same way as he used to, and girls do not make up in the same way as their mothers and grandmothers did.

今天的理发师不会像以前那样给男孩理发，女孩也不会像他们的母亲和祖母那样化妆。

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If we look back at our ancestors, we'll see that they had a lot more hair on their bodies than we do now.

如果我们回过头看看我们的祖先，我们会发现他们身上的毛发比我们现在多得多。

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Latinas do not wear their hair or behave in any particular way.

CNN: Latina 'Dear Abby' brought wit, wisdom, light

It identified that Indians do not wash their hair as often as westerners (largely because it is too expensive), but always wash it for special occasions.

ECONOMIST: Letters

That observation is only useful, though, if you can multiply dermal papilla cells and do so in a way that allows them to keep their ability to induce hair growth.

ECONOMIST: A cure for baldness