Why won't hair on our heads stop growing? (not everyone though) How is it different from other kinds of hair?

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Why won't hair on our heads stop growing? (not everyone though) How is it different from other kinds of hair?

I don't see other mammals' hair to grow indefinitely. Is it something special only seen on humans?

2007-01-22 15:54:10 · 1 answers · asked by Quantum 1 in Science & Mathematics ➔ Biology

1 answers

Human hair doesn't grow indefinitely either. Everyone has a limit on hair length that is determined by genetics. For some people it's very long, others it's no more than shoulder length.

2007-01-23 01:43:49 · answer #1 · answered by floundering penguins 5 · 0⤊ 0⤋