Scientists have known a lot of information about the gray hair but did not reach so far to know why. Hair material is very complex, and no research shows about the structure and how it is formed only recently, and the hair is composed of thin fibers composed of protein called "keratin." And interference is a substance in the composition of hair and nails, and hooves and horns of animals. And when you examine hair under a powerful microscope, look like us are covered Kaharashv forms, and is called the skin layer of dead or been turned. And the hair grows from the pits in the dermis, the outer layer of the epidermis, and extends into the inner layer of the skin. At the end of the hair bulb contains no blood vessels that supply the small hair food. While growing the hair is surrounded by a protective layer and the source-rooted, and as the cell moved away from the hair, the more dried hair and increased Fassaute, and died in some cases. Continue the process of hair growth about four years when men and six women. Even the length of hair about 80 cm hair becomes capable of carrying 80 gr. A hair that is wrapped around each other, enough to suspend an average-sized person. And the growth process is not permanent forever, After the bulb begins activity of acute phase of comfort that lasts from three to six months before you start working again. Vtkon new hair and push out the old and fall. And scientists estimate that humans lose about a hundred hairs a day, and is the natural rate, because 90 percent of this amount to grow back again. And hair color depends on the special dye, called melanin, are produced in special cells known Milansaats, melanin and the same brown color, hair color, whether or Ohqra dark, because the same color depends on the amount of melanin produced and distributed way. The red hair dye contains an additional, rich in iron. And the hair begins to lose its color when Almilanosaats suppresses activity. In fact, there is no gray hair and another white. Valmzar produces gray hair peppered with white hair that still maintains the basic color. The reason for fatigue Almilanosaats cells is still unknown. And when it occurs in the elderly, it must be to do with the slow process of metabolism in general. And yet is still uncertain if the white hair and genetically, as well as whether the loss of cells for their ability Almilanosaats natural result of trauma or neurological or psychological pressure. And there is a lot of documents that indicate that some people have lost their hair the color of the night and overnight!!
