但白妞摸着你没有胸毛

人家觉得有点奇怪

你跟她说

东亚女人不用刮体毛

她们也颇有羡慕

dawningtime 发表于 2021-08-22 17:12

白人也有一些没有胸毛，也遇到过毛发重的男人但是体毛刮得干干净净的

胸毛，腿毛浓密是生命力旺盛的标志，如果是男性，荷尔蒙激素分泌旺盛，如果是女性，雌激素旺盛

亚洲人也有体质很强的，只是少些

tgaa 发表于 2021-08-25 02:36

Quora上説得更有道理

“Hair has 2 main functions, it keeps us warm at night, but also lets us sweat. If you think about the hairiest people (Mediterranean, Indian etc.) they tend to come from hot areas, not the temperate ones. This is because in the deep past, it is advantageous to sweat to cool down, but also keep you warm at night (it can get chilly in the desert when the sun goes down)

However, that is only half the story. In areas like SE Asia, the amazon and the Congo, people have almost no body hair, despite it being very hot indeed. This is because these areas are humid jungles. If someone was to sweat as much as a European in the jungle will likely dehydrate far quicker than a hairless local. Having sweaty hair in the jungle also attracts parasites such as lice or fleas, as well as being generally uncomfortable. Finally, humid areas tend to stay warmer at night, reducing the need for insulation.

Therefore, evolution had to balance cooling down vs staying warm vs hydration, leading to results we see in modern humans today.”