Spyke
lemmy.world

Hair goes through multiple phases.

It'll grow for a while, then fall out. Even beard/head hair. It just has a longer grow phase before falling out.

Which is why short hair grows an inch way faster than long hair does.

52
lemmy.world

The follicle pooping it out is basically only gonna poop out so much before it poops out.

31

Have you ever seen someone's arm after they have a cast taken off? Your arm hair is short because it's being rubbed off by random interactions with things (rubbing against shirts you take off/put on, your body, general use). A person with a cast on their arm protects those hairs, and when they finally get the cast off, they look like a werewolf.

8
lemmy.world

It's weird how often I get comments from people days later, who think they know what they're talking about about, but are missing a piece that explains it.

If you're going to comment on old threads, try asking a question. I probably would have explained for you and you could have learned something.

-6
renohrenreply
partizle.com

That was 3 hours later, not really old besides he's correct: hair doesn't grow differently because of its lenght but because of its placement on the body wich induces different thickness and different abrasion sources as well as cycle lenghts

6
lemmy.world

Mate, you don't know how time works, let alone hair...

I don't think I'll be missing anything if I don't see either of your comments again.

Good luck

-11
linucsreply
lemmy.ml

So I have a follow up question, let's say someone has 20cm long hair, all of them are that long, we don't see 5/10cm hair still growing to get to 20, I'm confused, how does that work?

2
lemmy.world

You don't see them because the longer hair covers them up.

They're still there.

If it happened to big patches at once it would stand out, but that's not how it works.

20
yA3xAKQMbqreply
lemm.ee

No, hair does stop growing.

Hair grows in phases and cycles. At the end of the cycle, it falls out.

The difference between body hair and the hair on your head is that the latter one has cycles measuring years, the other weeks.

55
JoBoreply
feddit.uk

No, hair does stop growing.

Hair grows in phases and cycles. At the end of the cycle, it falls out.

This is unhelpfully pedantic given the OP's misconception.

Hair does not (appear to) stop getting longer because it stops growing. It (appears to) stop getting longer because older (longer) hairs fall out.

4
yA3xAKQMbqreply
lemm.ee

What’s „unhelpfully pedantic“ about a correct answer that explains OPs misconception? 🤡

The person above said hair doesn’t stop growing. That’s wrong. It does. It grows, then it stops growing, then the dead hair falls out. Why does it know when to fall out? Because it’s dead, Jim.

OPs question was why the hair on their head grows longer. Answer: because it’s growing cycles are longer.

I’d say you’re unhelpfully pedantic telling other people giving helpful and correct explanations they’re „unhelpfully pedantic“.

I’d say you’re extremely unhelpful because you give an „explanation“ that’s just complete bullshit and doesn’t explain anything.

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Why does my arm hair know when to stop (re)growing but my "head" hair or beard don't know? | Spyke