Even in those times when it is not invented the wheel, hair is considered one of the main factors of attraction. All nations decorated their hair and modeled them. It was the expression of their status or social origin. For a couple of thousand years, nothing has changed: chic and long hair are desirable for each of us, balding all the same fear and the gray hair that in the Middle Ages, is now spoil our mood and someone drive in depression.
Nature of the hair follicle is fraught with many puzzles. Just half a century ago, nobody knew what was contained stem cells. A criminal is no longer so easy to cover his tracks: gloves or thorough removal from the scene of his fingerprints will not save it, criminologists hair learn a lot about him.
If at leisure to check out several scientific papers in the field of Trichology, then just half an hour of hair can learn so many interesting things that you start to love and appreciate them more than before. But more on that later today will touch on the topic of aging hair.
For the curious, I collected some interesting facts from the scientific papers trichologists that address issues of aging patterns of the hair follicle.
1. The hair follicle can become a source of creation of new bodies
You heard of Nestin structural proteins? It is found in adult stem cells. And Robert Hoffman, professor of biology at the University of California, in one of his studies found that nestin is very much concentrated in the hair follicles of the person.
Protein nestin very interesting: it can in the laboratory can differentiate into keratinocytes (major cell our outer layer of skin), neurons, smooth muscle cells, glial cells (they are in the nervous system in our country), and melanocytes. The ability of this protein may help in the formation of adult stem cells. It was then not only learn how to stop the graying of hair, but more of the stem cells of the hair follicle will begin to create new bodies. It is very cool!
2. Aging hair follicle and the hair shaft
Moreover, the aging of the rod of the hair occurs only under the influence of external factors: photoaging (+ UV-smoking), and atmospheric conditions. More aging causes in the hair shaft no.
The hair follicle undergoes internal (physiological) aging. The reasons for this weight: from genetics to free radicals. The most interesting and challenging for physicians and scientists hair cause of aging - multimorbid state in old age (this is when a person has seen several diseases, but their causes are not linked a). In old age, the hair follicle directly attack a few troubles: taking medicines drugs, disorders of the endocrine system, nutrientnye disease, psychological disorders and dermatoses. This whole "bunch of problems" suggests that genetics good hair - weak guarantee that in 50-60 years the person is not bald or, for example, not posedeet in 30 years.
3. Six useful components prolong youthfulness hair
As with life in general. Possible :-) The point is that there is one of the theories of aging, in which the main role is played by telomeres - it's the end portions of chromosomes. Over time, reduced telomere length, and we age. To turn back the clock, it is necessary to maintain or lengthen telomeres.
The theory is very serious about this for a long time to write. Do we make immortal or not unchangeable length of telomeres - do not know yet. But one thing is certain: reduced telomere length provoke graying of hair.
Telomere length beneficially affect these useful components: B12, D, E and K as well as omega-3 and zinc. In what foods contain them - find themselves. The strongest of the six - vitamin D. So enjoy sunbathing. A's Skin products for hair with B12 and E have to buy without thinking. And the higher the concentration (this can easily be determined if the composition are not on the fifth in the list) is better. For your hair.
4. After the birth of a person over a lifetime does not appear on the head, new hair follicles
They are formed only during embryonic development. And there may be between two and five million. But it does not mean that everything will be presented with a dense pigmented follicles of hair. With age, decreasing the diameter of the hair shaft, the active phase of hair growth is reduced, it is very well seen in men.
5. For the color of the hair melanocytes responsible
Who have their own internal body clock. After reaching the 30th anniversary every 10 years, they are becoming less by 10-20%.
6. graying process inherited
It is controlled genetically. Alas, for life "to rewrite the code," we can not melanocytes. The main thing is to understand, accept and not to worry.
7. Sedin primarily affects whiskey, in the last instance - nape
From the temporal area to the top, from the top - everything else except the back of the head. Nape in graying goes for dessert. Distributed gray waves.
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