The structure of human hair.

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well-groomed hair - the dream of all the fairer sex.Spending a lot of time and effort on different styling, perms and coloring, many women forget about that pledge beautiful hairstyle - healthy hair.To do this it is necessary to know what the structure of the hair, what its life cycle, the causes of pathological changes and their solutions.

from root to tip and

Every hair includes multiple elements.The visible part - the core, which is composed of non-living cells filled with keratin.In the interior of the scalp (at a depth of about 2.5 mm) is the part of the hair, which determines its appearance - the root.It consists of a plurality of living cells are continually dividing.This process ensures the growth of hair.Cell division is not possible without the participation of tissue near the root.Together they form the hair follicle, which departs from the nerve ending.The structure of the hair on the head is such that the damage to this end leads to the complete withering away of the root without the possibility of further recovery.Great influence on the beauty and hairstyles has sebaceous glands close to the follicles.If they are too large, the scalp becomes oily.Underdevelopment of the sebaceous glands leads to dryness.Also in the skin next to each hair is muscle providing its rise.

structure of the hair follicles Good

provide quick hair growth and significant duration of their life.However, the appearance of the hair is also determined by the state of the rod.The structure of the hair in the context shows that its visible part consists of the following layers:

  1. scaly layer.It determines the shine and smoothness of hair.The larger location will resemble scales tiled masonry, the more well-groomed hairstyle will look.
  2. cortex.It includes a variety of chemical elements provide the power of hair.The more of them, the more vitality get hair.
  3. core.This component was studied very little.According to the results of observations in the healthy hair with a thick layer of the root is present, but in a weakened - not.

stages of hair growth

hair structure and defines the different phases of his life.These cycles follow each other and depend on the degree of cell division of the root.The lifespan of hair can be divided into the following phases.

  1. Anogennaya.This phase of active hair growth is ensured by its root cell division.The rod extends in length and thickens.This stage lasts about 3 years.It is about 80-90% of the hair on the human head.
  2. catagen.In this phase the hair follicle atrophy.The cells cease to divide, slowing down the growth of hair and then completely stopped.Its root shrinks and gradually moves closer to the surface of the scalp.Catagen stage lasts about a month.In this phase, both located about 2% of the hair on the head.
  3. telogen.This phase is characterized by a period of rest of the follicle.Seta almost fixed in the skin and may fall at the slightest physical impact.Being in this phase is typical for 20-40% of all hair on the head.

Effect on hair growth phases

Most hair falls out during the stay in the telogen phase.Some, however, are saved until the start anogennoy phase.However, they fall at a time when the newly emerging hair shaft pushes the old one.

Phases of growth as well as the structure of a human hair, define the appearance of hair.Long hair, for example, the easiest way to grow at a young age.This is due to the fact that each hair has about 25 cycles of life, with each of which it grows less and become thinner.Furthermore, after 30 years of hair growth slows down gradually.Before this age they grow to approximately 1.5 cm per month.

Causes of hair problems

There are a number of reasons that can cause growth retardation, hair loss, affect their appearance.These include:

  • Endocrine diseases, hormonal disruptions in the background and the problems in the field of gynecology.
  • diseases gastrointestinal tract, liver and kidneys.
  • Taking certain medicines.
  • deficiency in vitamins and minerals.
  • Heavy physical exertion and stress, after which the hair starts to fall immediately, but after 2-3 months.
  • Wrong hair care, the negative impact of styling, colors.
  • Prolonged exposure to direct sunlight on the hair, sudden changes in temperature.Excessive overheating of the scalp, or extreme cold also adversely affect the health of curls.

So beautiful hair - a sign of health and performance of the body.Dull and brittle locks are often a reflection of various chronic diseases and pathological conditions, and which must be fought first.

Vitamins for beautiful hairstyle

Very often the structure of a human hair and duration anogennoy phase change for the worse due to lack of vitamins and minerals.The hair becomes dry, brittle, lacking shine.In this case it is necessary to revise the diet or try to compensate for the deficiency of vitamins special additives.With their selection should pay attention to the presence in the following components.

  1. B vitamins B. Its deficiency leads primarily to the loss of hair shine and dryness.A vitamin B3, for example, is responsible for the normal amount of the coloring pigment.Its deficiency in the body manifests early graying.
  2. Vitamin A. Under its influence restores damaged hair structure, it becomes elastic.
  3. Vitamin C - a great stimulator of hair growth.
  4. Vitamin E - one of the sources of supply for tissues of the hair bulb.Especially recommended to owners of long hair.
  5. Zinc prevents the formation of excessive amounts of sebum, normalizes oiliness of the scalp.
  6. iron and calcium are necessary to prevent premature hair loss.
  7. Silicon is involved in the formation of collagen and elastin, the expense of which the hair becomes elastic.

Hair Care

Improving the structure of the hair and possibly subject to certain simple rules of caring for them.

  1. Regular washing of hair from pollution.
  2. Compliance optimum temperature.You should not wear too warm hat in which the scalp constantly sweats.At the same time stay without headgear at temperatures below 3 ° C for 10 minutes results in a significant reduction of life cycle stages anogennoy hair.
  3. Avoid prolonged exposure to direct sunlight, since the structure of the hair on the head of that changed for the worse.In the summer, especially during the holiday on the beach, it is best to wear a hat.
  4. One of the conditions of owning a luxurious hair - sparing methods of installation.Daily perms, blow-drying, coloring - all this leads to problems with locks.

Skilled care

hair structure - is to some degree indicator of the state of the organism as a whole.Therefore, if the subject of diet, intake of providing of necessary vitamins and minerals, and the proper care of hair to fall out and they continue to look lifeless, should refer to trihologu.You should not attempt to independently deal with the problem, because it can be a symptom of a chronic disease.Triholog help to understand the causes of disease and should be sent to other doctors for advice.