Generally speaking, the color of the hair is responsible for the pigment melanin, which is produced in special cells melanocytes.
When pigment production stops, and appears gray. To influence this process by several factors.
1. Aging
With age the production of melanin naturally decreases. The well-known principle 50/50/50: 50 years, 50% of the population has 50% gray hair. A few years ago, scientists tested this rule and found out more exact figures are: 74% of people aged 45 to 65 years have, on average, 27% of gray hair.
Usually the first gray hairs appear in the region of 30 years or later. If pigmentation is lost before talking about premature graying.
2. Genetic factors
The time of appearance of gray hair and the speed of its distribution depends on heredity. This is confirmed by science. So if your parents turned gray early, then you will most likely face the same fate.
Importance of racial identity. It is proven that Caucasians go gray earlier than Asians and Africans.
3. Disease
Gray hair may appear due to problems with the thyroid gland, certain autoimmune diseases or progeria. Also sometimes it is caused by chemotherapy or when taking certain medications.
4. Smoking
This addiction has a negative impact on the condition of the skin and hair color. According to a study published in 2013, smokers are 2.5 times more than non-smokers, are prone to premature graying.
5. Vitamin B12 deficiency
Lack of vitamin B12 provokes not only premature graying, and hair loss. Good news is that the loss of pigment in this case reversible.
6. Perhaps, the stress
There is a perception that gray hair due to nervous tension. One study confirmed this relationship, but in General science has doubts on this score.
In any case, stress is bad for the body. So less nervous.
How to resist the grey
Preventive measures against age-related loss of pigment or no inheritance. So the advice here is obvious: if you want to get rid of gray hair — paint.
There are less long-term solutions:
Take out the gray mascara for hair. It is great in order to disguise the individual strands, and rinse with water.
To use means to disguise gray roots. They are available in the form of a spray or powder and stay as long as you don’t wash them with shampoo.
To use a toning shampoo. He rinsed off as fast as the previous tools, and are able to remain on the hair for a few days.
By the way, contrary to popular belief, the gray hairs you can pull out this gray hair will not be more — just in the same place will grow a new gray hair.
But such a radical way to harm the hair follicles so it is better to resort to more lenient measures.
If it’s not the age and not genetics, you can delay graying. To do this:
Quit Smoking (or never start).
Eat foods of animal origin, particularly liver: contains vitamin B12. Special vitamin supplements are best taken only after consulting a doctor.
To the word. Check your health: you may be able to prevent the graying and the diseases it causes.
Learn to deal with stress. As has been said, not the fact that this will stop the appearance of gray hair, but at least you will be less for her to be nervous.
And finally good news
Recently, scientists from the southwest medical centre of the University of Texas made an interesting discovery. According to them, loss of hair color and hair it self may also be associated with the presence in the cells and SCF protein KROX20.
While the experiments were conducted only on mice. But the authors do not exclude that through their work in the future may be a cure for gray hair and baldness. While we can only hope that this future is not too distant.
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