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How underarm hair is an evolutionary necessity is beyond me. amirite?
by Anonymous13 years ago
It acts kinda like a lubricant so your arms don't chafe when they swing. Or at least that's what I heard.
by Anonymous13 years ago
You lose a ton of heat from your arm pit area - that's why arm pit hair was necessary historically. The same is also true with the hair on the top of your head.
by Anonymous13 years ago
it's also because armpit hair catches pheromones given off through your sweat
by Anonymous 13 years ago
by Anonymous 13 years ago
by Anonymous 13 years ago