Why does hair go grey?

Answer 1

Gray hair color typically occurs naturally as people age, usually turning their hair from its natural color to gray and then to white. More than 40 percent of Americans have some gray hair by their fortieth birthday, but white hairs can appear as early as childhood. The age at which graying begins seems to be almost entirely based on genetics. Sometimes people are born with gray hair because it is passed down genetically. Some people use hair dye to disguise the amount of gray in their hair.

The change in hair color is caused by the gradual decrease of pigmentation that occurs when melanin ceases to be produced in the hair root and new hairs grow in without pigment. Two genes appear to be responsible for the process of graying, Bcl2 and Mitf. The stem cells at the base of hair follicles are responsible for producing melanocytes, the cells that produce and store pigment in hair and skin. The death of the melanocyte stem cells causes the onset of graying.[1]

Answer 2

I heard it starts when your mom first got it. I have a few white hairs in my head and its started when I was about 15. thats when my mom started getting gray hairs. i am 23 now.

I usually try and dye my hair so it covers the grey but sometimes it doesn't even help.

I hate grey hairs.

Answer 3

The change in hair color is caused by the gradual decrease of pigmentation that occurs when melanin ceases to be produced in the hair root and new hairs grow in without pigment. Two genes appear to be responsible for the process of graying, Bcl2 and Mitf. The stem cells at the base of hair follicles are responsible for producing melanocytes, the cells that produce and store pigment in hair and skin. The death of the melanocyte stem cells causes the onset of graying.

When it happens as a child or before one gets old...it caused by genetics.

Answer 4

I heard somewhere that your hair is orriginaly grey

but what turns it grey in the end
is certain Hormonse and old age


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Answer 5

Because in the cycle of life, you are born, you live a little, then you die......grey hair is somewhere in the middle.

Answer 6

your hair and nails are made of the same material, it's called caritin, (sp?) it's made of the same stuff that cow's horns are made of.
when you get older, your body doesn't produce caritin that has color in it anymore. i don't know why your nails don't go grey, but your hair does. so it turns grey.
it depends on genetics when you start turning. like, my mom starting going grey when she was 20 and my dad started when he was 40, (personally, i hope i'm like my dad and start at 40!)

Answer 7

Grey or white is its natural color after the body stops producing color for it.

Answer 8

Here is an article explaining why hair turns grey: http://www.hairfinder.com/info/hair-turns-gray.htm

Answer 9

hair grows gray as we get older. there can be many reasons WHY hair turns gray. it can turn gray from stress or our aging process. as we grow older, the pigment cells in our hair would die and turn that color. a lot of people say that you can get gray hair at any age, but i think it depends on our genes.

Answer 10

Probably just runs out of pigmentation like a pen running out of ink! lol