Quote:
Originally Posted by Skane
Why does the hair on our head keep growing endlessly? Are there any other animals that have continuously growing hair/fur as well?
Hmmm... ...
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Our hair is made of dead red-blood cells. Unless you have invincible red-blood cells, they will keep growing.
Strength of your hair is an indication of how strong your respiratory system is. If a hair that dropped off breaks easily or is brittle, you might want to watch your diet.