Guden Oden said:
I don't really, but I like to be as scientifically correct as possible. Hair is dead tissue and the root doesn't know wether the tip's been cut off or not. That's just the way things are.
No, you're just playing God like you usually do. Only this time you have no "scientific reasoning" to fall back on.
This, as many other things about ourselves is decided by our genetic makeup. The hair grows to a certain (total, in case it is severed) length and then falls out.
Depends on what kind of hair.
Head hair stops growing too. I let mine grow unhindered for years, it never reached past my nipples or so.
No it doesn't stop. It never reached past your nipples because hair breaks off. My mum and most Afro-Caribbean people cannot grow long hair not because it "stops growing" but because the structure of the hair does not lend itself to being long. It's just too curly, wavey, thick and dry to be able to "survive" being long. It doesn't stop growing.
But no matter wether it's "supposed" to be there or not, it still doesn't know it's been cut, so how could it react to being cut and grow back thicker? It just keeps growing regardless until it's grown fully. Then it is shed and a new hair is generated.
GO, chest hair STOPS growing. So, cut your chest hair. You will not "tell" the root that the hair has been cut off, therefore by your reasoning those hairs should just stay like that since chest hair stops growing.
So why is it that after you cut it, hair starts growing again and stops after a certain point? You never stimulated the root, so how does the root "know" that it needs to start growing again, to stop until it reaches a predetermined length?...
If THAT happens, then how is it so hard so imagine that MAYBE, just MAYBE the hair grows thicker too?
As you say, how could it know that it's been cut and grow back thicker? And i say: HOW COULD IT KNOW IT'S BEEN CUT OFF AND GROW BACK
AT ALL?
