One is to provide warmth, but as humans have worn clothes for many years, body hair has significantly reduced.

原因之一是为了保暖，但由于人类穿了很多年衣服，体毛明显减少了。

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Most women self-treat the problem by tweezing or shaving, and the only body hair most women like is their eyelashes and eyebrows.

大部分女性用镊子或者刮胡刀来自行解决这个问题，而她们唯一喜欢的是她们的睫毛和眉毛。

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See your doctor if you have a sudden increase in facial or body hair.

如果你脸上或身上的毛发突然增加，那你要看下医生了。

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Their conclusion is that humans have fine body hair to serve as an alarm system.

ECONOMIST: Body hair

The final stage of creating the replica was to add head and body hair.

BBC: How scientists recreated Neanderthal man

It works by using a power source to pump 10 kV of juice to an electrode, which then polarizes a dielectric plate, causing it to attract your body hair.

ENGADGET: Chilly Chair uses static electricity to raise your arm hair, force an 'emotional reaction' (hands-on video)