First, a new gray hair may appear at the age of late 30s or early 40s. But according to a study conducted exclusively for Life & Style magazine, nearly a third (32 per cent) British women under the age of 30 years is now graying. Two-thirds of them said that stress is the cause. Whereas 20 years ago, the proportion of women who started graying under the age of 30 years only 18 percent.

Michela Colling, 28, an interior designer from North London, admitted that the gray hairs began to grow when he was 25 years. At that time, he had moved house and open a business. He believes these two things are related.
"Employing myself it stressful, because we never years when jobs will come. When I was working, it felt very depressed," he said. He could not forget the thought of a link between stress and the gray in her hair. Moreover, she felt her face looks so old from gray strands in her hair.
Fuss, graying society considers women deemed to have reached the end of their reproductive age. In fact, today women also tend to delay pregnancy. As a result, when they began planning a child, their hair had turned white in many places. This causes them to look older than their mothers at the start of pregnancy.
Gray hair is actually hair that has no pigment, and because of melanocytes-the cells that produce pigment-start damaged. This will happen naturally as we age. But some health experts say that gray hair can also be caused by genes, not just by the way of life.
"The main factor is the cause of gray hair of age, which is now accepted by everyone," said Nina Goad of the British Association of Dermatologists. "Uban premature usually determined by genetics, and only a few are caused by environmental factors. For most people, gray hair is not caused by something you did, but because of genetic factors that can not be controlled. In general, the lifestyle does not affect hair when began to lose its color. "
This opinion is disputed by other experts, who say that premature gray hair is due to stress. In his book, The Hair Bible, Philip Kingsley explains how stress can affect the body.
"We know, stress that deplete B vitamins, and many experiments with mice that are deficient in vitamin B causes their fur to be white. The same occurs in human studies, in which certain B vitamins are consumed in large quantities can begin to reverse the growth of gray hair, "he explained.
He is not the only people who associate gray hair with stress. Japanese researchers also explained that the hair follicles are vulnerable to the type of stress that damage DNA. This type of stress, called oxidative stress, caused by exposure to cigarette smoke, ultraviolet light, and pollution. Also there is a relationship between emotional stress and oxidative stress, which indicates that the concerns of women like Michella quite reasonable.
