Hair

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Micky T
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Hair

Post by Micky T » Thu Jan 19, 2006 4:41 pm

I know this sounds like a really stupid and pointless question, but I've always wondered why humans need hair cuts, and animals don't. Animals hair seems to reach a point and stop growing, yet ours seems to keep growing.

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mith
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Post by mith » Fri Jan 20, 2006 12:32 am

actually they fall off. The length of the growth cycle is determined genetically.
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Post by flint » Fri Jan 20, 2006 1:21 am

Your hair would reach a point where it stops growing too, just like the animals.

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Micky T
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Post by Micky T » Fri Jan 20, 2006 9:02 am

So how long does your hair have to be to stop growing?
And would long hair have an advantage in evolution?

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Post by MrMistery » Fri Jan 20, 2006 6:30 pm

Well the record for the longest hair is over 2 meters from what i know. The only advantage to having such a long hair would be to keep you warm
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Micky T
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Post by Micky T » Sat Jan 21, 2006 7:32 am

so we are the only animal that is capable of having long hair?

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Post by Nix » Wed Jan 25, 2006 10:26 am

Another thing that is interesting about hair, is how does it know how long it is already and how long it is supposed to become.

Like if you cut the hair on your arm or leg, it will grow back to its original length. How doesn't it know that you cut half of it, especially if there hasn't been any trauma near the follicle, like from waxing?
???? can anyone help?

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Post by MrMistery » Wed Jan 25, 2006 7:54 pm

There's more to it than that. If you shave your legs every week for a few years and then stop it will grow longer than before.
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