Grey Hairs at Young Age?

Some people have some issues with their hair. Although they are young but their hair had already started to become grey. How can this happen?
1) Genetic factorsA difficult factor to avoid. If a mother or father suffered grey hairs at young age, then the possibility for their children to get grey hairs is higher.
2) Lack of vitaminsHair hairs can be caused by lack of vitamin B and iron. People who suffered from anemia often get this kind of hair.
3) Lack of nutritious foodProtein is essential for the production of enzymes that form the pigment. If someone got not enough protein, grey hairs will start more quickly.
4) LifestyleStay away from cigarette smoke. Cigarette smoke can increase the free radicals in the body not only to smokers but also those around them.
5) Inappropriate treatment People who like to change the colour of their hair may be exposed to these symptoms. Chemicals in hair dyes may not be good for the head skin.
6) Effects of radiationThose who got cancer tend to be more exposed to having grey hair than other people at their age.