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Early times it was for warmth. It also serves to the protect the arm. It is also a sensing mechanism.

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16y ago
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Q: What are the hairs on your arm for?
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Related questions

What type of muscle makes hairs on arm stand on end?

pilierector muscle


Age of growing under arm hairs?

The age at which one starts puberty.


Should you be embarrassed of your arm hairs?

Well, it's all about how you feel.I have really thick, dark hairs on my arms. I was embarrassed at first but, I bleach it and everything's okay.


Why do the hairs on your arm stand up when they come into contact with a balloon?

static electricity static electricity


Can you get herpes from ingrown hairs?

yes, yes you can, it is very painful, it happened to my arm, eyebrow and toe


I have little under arm and pubic hairs and spots on your penis is this puberty?

I have had these things when i started having puberty.


I only have arm pit hairs will I start puberty?

Growing armpit hair is a sign you have already started puberty.


What does it mean when the hairs on your arm stand up?

it means that ur cold and ur skin is trying to make u warmer


How Many hairs are one a human arm?

Depends on the head. Some people have less, some more. Obviously, the number varies from person to person, but in general the answer is that the human head has about 100,000 strands of hair.The color of hair also makes a difference. People with darker hair have more dense hair than people with lighter hair.


How old are you when you have your first arm hairs?

You are born with hairs on your arms, these darken and grow longer & thicker when you go through puberty. The age of puberty varies from individual to individual, it is usually around 11 - 13 years old


Can you make the hairs on your arm stand on ends?

No, and the muscle that controls the movement is the piloerector muscle. See piloerector which are smooth muscle (involuntary)


Why does a balloon cause the hair on your arm to raise?

Rubbing a balloon on hair creates static electricity, which makes individual hairs repel each other due to the like charges present. This causes the hairs to rise and stand on end.