- #1
Pengwuino
Gold Member
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Why do people have hair on their arms/legs? And why does it only seem to grow on half your arm?
I expect that it is an adaptation. Here's an interesting article - http://en.wikipedia.org/wiki/HairPengwuino said:Why do people have hair on their arms/legs? And why does it only seem to grow on half your arm?
Well, I don't know about your hypothesis You'd have to have heavy long and curly hairs to notice anything! I can't imagine anyone having a split second warning that they are about to cut themselves with a knife because of the miserable little hairs on the top of your fingers. When you are already burning the hairs on your arms I'd think the heat of it would be a pretty good warning sign.hypatia said:Just about everywhere that a normal person would of had that split second warning they are about to hit something. And that would include heat{burns}, that quick little singe of hair that warns us to back off.
I don't suddenly get more cuts on my legs when I shave them, and competitive body-builders shave their entire bodies without winding up covered in cuts and scrapes. By the time you're brushing the hairs on your body, it seems too late to do anything much about it. I think your friend is more likely just a bit more klutzy than the rest of us and is trying to make excuses.hypatia said:Monique, if you slightly touch the hairs on your arm, you feel it, no matter how short they are. And no I'm talking about cutting yourself with a knife, more like, brushing your leg near a ruff object..if you have hair on your leg..you get a warning.
And its not really my hypothesis, it what the guy told me when I noticed so many scars on him.
The presence of hair on the arms and legs is a result of evolution. In the past, humans had much more body hair, which helped to keep them warm and protect their skin from environmental hazards. Although humans have evolved to have less body hair overall, hair on the arms and legs still serves as protection from the elements.
Yes, arm and leg hair serves several important purposes. It provides protection from sun exposure and helps to regulate body temperature. It also helps to prevent friction and irritation between the skin and clothing.
The amount of arm and leg hair a person has is determined by genetics. Some people have a higher concentration of hair follicles on their arms and legs, while others have fewer. Hormonal changes during puberty can also affect the amount of arm and leg hair a person has.
Removing arm and leg hair is a personal choice and there is no medical benefit to doing so. Some people choose to remove hair for aesthetic or cultural reasons, while others prefer to keep their natural hair. However, it is important to note that hair removal methods such as shaving or waxing can lead to skin irritation or infections if not done properly.
As mentioned before, hormonal changes during puberty can affect the amount of arm and leg hair a person has. Additionally, hormonal changes during pregnancy or menopause can also lead to changes in the amount of body hair. Some medical conditions or medications can also cause changes in body hair growth.