is it true that people with dark hair greys early?
402482
It still depends on genetics.
845816
Sometimes, "premature graying" (what you're referring to) happens/begins to happen as early as in the 20's and 30's...some people start having it happen later. It's a heredity and genetic thing. Hair color is the only thing I know that can make it LOOK BETTER--nothing, as of this moment, can stop it. The pigment (the thing that determines hair color) is gone in those spaces where the gray or white are. Don't freak out.
467491
The hair below may not be as light as the hair that is atop our heads because the hair on our heads is exposed to the effects of sun. \n\nMy hair is fairly light all over, something you may not know is that when you get older and the hair on your head begins to turn gray your hair "down under" may also turn gray!  \n\nMy great grandmother told me once after it turned gray that all the hair fell out, but I don't know if that was the truth, (I never looked to see) if I live that long I am sure I will find out though! :D\nruthie~
898826
Most of the answers here are incorrect.  You can turn grey from illness but it's generally just genetic.  In my family we all start greying at 16 and have quite a bit by the time we're in our early 20's.\n\nThe darker your hair the more the grey shows so you may not even notice grey hair on a blonde.\n\nThere are LOTS of young people with grey hair but 19 is pretty young to be very grey.  I do know one guy who was snow white by his early 30's.
364625
The hair on the face and head are exposed to the sun the varying exposure conditions of the environments. The bodies metabolism is very week to stand that varying conditions it is subjected to. The roots are very week to take the heat of the sun and due to this the pigments of the hair changes into Grey.
1007237
I think this is a hoax, my friend.  I know of no honest medical treatment that has the ability to change hair colour.  Or else, it'd be all over the place and no one would have grey hair that didn't want it.\n\nGrey looks distiguished.  Revel in it.
90880
You can pluck out gray hair.  I heard coloring your hair (any color hair dye) can also cause it to turn gray, so stay away from hair dyes.
1013617
Grey hair is caused by death of the melanin (color)-producing cells in the hair follicle. It is more noticeable in dark hair than light. Since most Indian people are dark haired, it can be seen in children, whereas in a largely light-haired population, it would not be seen. Greying can happen at any age, though it is more likely as one ages.(1)\n\nAll people do not have poor eyesight (or it wouldn't be considered poor, it would be considered normal), though there are genetic, environmental and nutritional factors that can make the numbers greater in one area than another. Many of those who do have poor eyesight, have had it since birth. \n\nIt is unlikely to be noticed in a young child who is otherwise healthy, as they can't tell you what they can or cannot see. As they learn to talk, they don't mention any problem, because they don't know that everybody's eyesight isn't like theirs. \n\nIf you are seeing an increased incidence of poor eyesight, perhaps it is due to better medical care and eyesight screening. Certainly it could be something that is causing children to have poor eyesight more often than in the past, but it's more likely that it's just being picked up earlier.\n\nI think that if you were able to find the information from an unbiased source, you'd learn that these two things have always happened in young children, and aren't just starting to happen now. And remember, older people *always* think "Things just aren't the way they used to be!" We're sometimes wrong about *some* things.
1169833
This is a website for kids, but it gives a pretty good answer:\n\nhttp://kidshealth.org/kid/grownup/getting_older/gray_hair.html
23202
Hair turns gray as we age because the follicles at the base of the hair shaft cease to produce melanin. Each follicle contains a finite number of pigment cells. These pigment cells produce melanin, a chemical that gives the hair shaft (the visible strands) its color (black, brown, blonde, red, and all shades in between.) The darkness or lightness of your hair depends on how much melanin each strand contains. Melanin is the same pigment that makes skin tan upon exposure to the sun.\n\nWith age, the pigment cells in the follicle gradually die off. As they do so, that strand will no longer contain as much color and will show up as silver, gray, or white as it grows. Eventually, all the pigment cells will die and the hair becomes completely gray.\n\nThe age at which you go gray is determined by your genes.
581410
In general, most things that happen that signify age, from infanthood to old age, are genetically regulated development processes.  At some point, in those who carry the genetic predisposition, certain proteins will start to be expressed, and others will be decreased-Though it's unclear the exact genetic cause of gray hair, this is likely the cause.  Support for this hypothesis comes from the fact that not all people turn gray, that it has no clear relationship with health or longevity, and that some people turn gray quite young- All these point to a genetically controlled developmental change.
367157
I wouldn't worry about it.  Grey hair is just another sign that you're changing.  If you have a good character and personality, then it doesn't matter that you have a couple of gray hairs.  If you are really concerned, then just dye your hair but remember, beauty fades, dumb is forever.
1063145
Yes, they do, but they don't turn red like us pale skins do. I have many black or dark friends that have spent too much time in the sun (mostly in sports) and they do get burned.
25816
I like to change my hair color every year or so. Right now I'm dark brunette because I like the sexy/serious tone it has.  You know, business-fabulous. Variety is sexy.  Getting stuck in a rut is what makes a person un-sexy.
285816
Greying hair is genetic from the MOTHERS side. Take a look at your relatives.
97163
of course it has to be grey.. and maybe you might be even bald..\nam i right.
811517
Yes it's possible\ni've heard it b4 two years\ni sorry 4 u as i can't explain it \nsearch 4 a good website\nTHE pigmentation doesn't depend on the sun rays \nall that's built - up b4 birth\njust there wud be a slight difference after exposure to sunlight