Premature gray, what can i do internally? what does this mean? possible stroke, deficiency?

Usually familial: Premature graying of hair is often a family trait, so there should be relatives with the same problem. As a familial trait, there isn't anything wrong inside the body. One's primary care doctor, the doctor doing one's general check-ups every year or two, can help check to make sure that the general health is normal... And confirm that there isn't any other problem going on.