my hair  grays, that of my brother, 2 years older, not. Why is that?
463877
At what age did your father turn grey? Genetics has alot to do with. Plus, stress, diet and what shape, your in, all are contributing factors. Is your brother a more contented person with a solid foundation of a good career & a healthy & loving relationship with himself and another? When was the last time that you had a complete physical examination by your doctor? There might be a hormonal imbalance.Check it out.
25922
Good question.  I believe that it's hereditary.  My Dad was completely white before he was 18.  I started to get white hair at the temples when I was 13.  My two daughters had a few white hairs in their teens.
295360
stress and old age. \n\nHair typically turns gray as a result of aging. Pigment in the hair shaft comes from special cells at the root (base) of the hair. These cells are genetically programmed to make a certain amount of pigment (melanin) at specific ages. At some point in the aging process, these cells make less and less pigment until the hair has very little pigment. White hair has no pigment, and gray hair has some but not as much as a red, black or brown hair.\n\nNot all hairs respond in the same way or at the same time. So the graying process usually is gradual. You can't prevent graying. Some people start graying in their 30s, and some not until their 60s. Genetics likely play a strong role in graying.\n\nPeople rarely go gray overnight. If they do, it's typically due to alopecia areata. This condition causes the thicker, darker hairs to stop growing before it affects the growth of gray hairs — giving the impression of graying overnight. Alopecia areata eventually causes roundish patches of hair loss or complete loss of hair on the head or body. Its cause isn't known.
358299
it is a mixture of stress, genetic link and biologically changes in your body, your dietcan also influnce it! I started balding at 19, (my grandad was bald by 18 so i've done well!) My girlfriend also is greying and shes under 30, but she does stress out a lot.
467615
When my brother was younger, he had the exact same thing happen to him.  Your hair loss could be "Alopecia Areata".  It's a type of hair loss that occurs when your immune system mistakenly attacks hair follicles, which where hair growth begins.  Experts don't know why this happens.  Alopecia is most common in people younger than 20, but can occur in children and adults of all ages.
1017770
I am 37 and have alot of grey hair ...so what....if it bothers you get rid of it...i think personally it is a sign of wisdom
142612
your hair turns to a diffrent color than you was born with
35837
by the time .... it may be genetic.... sometime people loose hair in early age .... same kind of problem .... do not worry... if until you are 29 or 30
985222
why is your hair blue?
358798
Sorry, that is completely false. Most of the time, your hair will simply grow back in; but if you caused enough trauma to the follicle when pulling the hair out, it may never grow back at all. And as far as gray hair goes, there is strong evidence that indicates we all have gray hair at any age, but as we grow older, our colored hair stops growing in and we are left with just gray hair.
88762
yes! I have the same situation with a brother.
76082
Sorry dude, no way to prevent grey hair--it's in your genes.  Did your parents go grey early?  More then likely you will too.  Best thing to cover it up is to purchase an at home hair coloring system or have it colored in a salon.
263852
LOL...sorry I was just wondering this the other day. I have no idea but I have noticed that. It looks like they could be brother and sister. I guess they just spent all that time together and kinda take in the others looks, ex: hair, expressions, personalities, weight-gain or loss, facial characteristics. Take my brother for example, him and my step dad look exactly alike...curly hair (looks like a afro sometimes...they are white though that's the funny part!), weight gain (both look like twins when you see them from behind, love handles and all ha ha), it's funny how it happens, kinda scary too!
848833
It could be stress or perhaps you need a better shampoo to make you're hair stronger. I am having the same problem and I am also 20.
780350
I am older (60) and very attracted to women.  The color of their hair is not important.  To me it is a combination of their overall appearance and how friendly, outgoing and sincer they are.  I like all hair colors except gray.
1163500
hey bro, let me do you a favor off the course. sure things can be passed on to one another i.e. viruses, disease, behavioral patterns, peer pressure etc., please do not buy into this line of thinking. my buddy received his full head of grey at age 19, right after his car ran off the road and down in a ditch only to be rescued later by luck. take a step back, don't overthink it and then move on without making this an issue.
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.