2006-09-10 19:25:24 · 7 answers · asked by waipan_rox 1 in Science & Mathematics ➔ Biology
The melanocytes that produce the pigment located at the base of every hair follicle start to shut down in old age (as do a lot of things) and as older dark hairs fall out, they are replaced by white hairs.
2006-09-10 19:36:52 · answer #1 · answered by M 3 · 0⤊ 0⤋
Melanin., which colours our skin and hair stops production with age in the hair follicles and this makes our hair white. Not the skin.
2006-09-10 23:23:11 · answer #2 · answered by Sarab s 3 · 0⤊ 0⤋
Because the blood doesn't carry the coloring agents after a while. Hair can also trun gray as a result of sudden stressfull events or news.
2006-09-10 19:33:17 · answer #3 · answered by I had 22 characters to work with 3 · 0⤊ 0⤋
Our body slows down the production of melanin.
2006-09-10 19:31:48 · answer #4 · answered by Fleur de Lis 7 · 0⤊ 0⤋
because it would look too weird if it turned orange
2006-09-10 19:32:10 · answer #5 · answered by el.tuco 5 · 0⤊ 0⤋
it just runs out of ink (melanin)
2006-09-10 19:28:14 · answer #6 · answered by Kathy O 3 · 0⤊ 0⤋
losing its pigments
2006-09-10 19:31:48 · answer #7 · answered by ♦cat 6 · 0⤊ 0⤋