The reason for this may be the influence of various factors, and the first scientists call a genetic predisposition. If your relatives turned gray in a certain period of time, it is possible that you will reach to consider the same.
Violation of the metabolism or lack of vitamins and minerals, too, often becomes a cause of premature gray hair. The trigger - illness or poor nutrition. So, some of the disease entails a violation of the metabolism. As a result, the body does not receive the necessary trace elements that are the building component of hair and thus there is a violation the production of melanin.
Why your hair turns grey because you are under a lot of stress, posing the question, experts say, in recent years has increased several times. Stress is a constant companion of life of the modern urban dweller.