The hair on your scalp can get really long, but your leg hair doesn’t sweep the floor. Why not?
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when the hair detaches itself from the root, how is it still connected to the arrector pilli and able to stand up? and when the hair falls out, what happens with this muscle connection? does it detach and reattach to hairs as they grow, fall out, and are replaced?
When people grow their hair as long as it will grow it usually tends to stop growing at about the waist line. But if they cut it back, it will grow again until it gets back to the waist. Some people can grow their head hair all the way past the ankles, I had a cousin with hair that long. Her hair seemed to just keep growing for ever. I am still wondering how hair knows that it's waist long.
God damn it... the answer at the end of the video is "We don't know". I really wanted to know how the hair in arms and legs can know when to stop growing considering they start growing so fast after being shaved.
I think if you let your hair grow out as much as it can and just leave it be and not cut it your body will use the extra growth hormone or whatever that is not being used since ur hair has grown to its full potential for other things like repair other stuff muscles groups etc.. I dont know just a theory.
Still don't understand how the hair on my legs knows it's been shaven for it to start growing straight away, the hair didn't fall out naturally so how does it know? I get the part it knows when to stop.
Well that could have been, like, a five second video.
Question: How does hair know when to stop growing?
Answer: We don't know. But we do know is scientists want to know too! So you're just going to have to wait on that. Until then, watch this video to find out how hair grows and falls out!
Its gonna vary from person to person. I can't recall when mine started growing in. Genetics will play a roll. Give it time. I'm 28 and wish i could go back to not having to shave my face every morning :/
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