hair covers the whole body except the palms, soles, and parts of the genitalia.Hair divided into three types: head hair, body hair (vellus) hair that grow after puberty.The hair of the head scalp resemble other mammals.Vellus very thin and usually less pigmented.The third type is growing around the genitals, armpits, and (men) on the face.Their growth depends on the male sex hormones that are produced during the period of maturation in both sexes.The amount of hair on the body depends on the individual, but on the average head has about 100,000 hair.
hair acts as a protective barrier.Eyelashes protect the eyes and the hair in the nostrils, and outer ears intercept foreign bodies and prevent them from getting into the body.Eyebrows protect eyes from sweat.
hair and retain heat.Air trapped between the hair, skin coats and does not release heat.The more hair straightened, the more air they hold.Each hair follicle is connected flat muscle that by cutting, causes the hair to rise, forming a "go
Hair is composed of keratin, a kind of protein, and grows from follicles in the skin.These follicles are formed from birth, and later in life new is formed.The root of the hair - his only living part: it grows and pushes the skin of dead hair shaft.Hair growth is cyclical, with the growth phase followed by a phase of rest, during which the hair falls out.Then, at this point, new hair grows.Every day of my head falls from 30 to 100 hairs.In the adult human head on the growth phase lasts about three years, and the resting phase - 3 months.Hair growth throughout the body is uneven, with different stages.The length of hair on the head is rarely more than a meter.
Hair color is determined by how much pigment they contain.Melanin, the skin pigment, is produced in the hair follicles.Production of pigment in the follicle slows down with age and often stops at all, so that over time the hair is colorless.A gradual "graying" is due to the fact that for many years the production of pigment slows several follicles at a time rather than all at once.Gray hair contain a reduced amount of pigment;white hair contain no pigment at all - pure white hair are albinos.When the hair turns gray, the skin also loses pigment and brightens.
In some people, the process of "graying" begins in the third ten, and hair may be gray in a few years.Other retain hair color to old age.The process of graying can be determined by genetics.Hair can not turn gray or turn white overnight, or even in a few weeks as a result of stress, as is often written in the novels.There is no known method to stimulate the production of the pigment, after it stopped, but can use various cosmetic products, with regular use can restore hair color.
There are three main types of hair:
influence on the shape of the structure (the thin, hard, thick) and the condition of the hair.
Keep your hair clean.Greasy hair should be washed every 2 - 3 days, dry - every 5 - 6 days.
Choose a shampoo according to the type and condition of your hair.
enjoy a good and clean comb.Dirty hairbrush is a breeding ground for bacteria and infection.Sharp edges can damage the comb structure of the hair.
Be careful with wet hair: in this state, they are more vulnerable and more easily torn out.Combs carefully.
Check the condition of the scalp for itching, inflammation, scaling, dandruff or degeneration.When in doubt, consult your doctor or dermatologist.
for strong healthy hair, it is important the presence of protein, B vitamins, iron, copper and iodine.
flaking and dandruff
Peeling is often confused with dandruff, but it may be caused by a dry scalp, and shampoos and dandruff treatment can only make matters worse.If your skin is dry and you find on your shoulders thin, dry flakes, you probably dry scalp.If in doubt, your hairdresser will tell you.There are a variety of treatments, from shampoos and conditioners for dry hair to professional treatment and massage with hot oil.Comb is not too stiff brush to the structure of your hair has stimulated increased production of fat by sebaceous glands.
sometimes seen on hair thick flakes of dead skin, which falls on the shoulders.Flakes quite fatty.Replacing the skin cells of the scalp is a normal part of growth.Excessive flaking of the skin can be caused by a fungus infection Malasseiia furfur.Dandruff is well treated specially developed selenium shampoos.
scalp can be infected by several different fungi, and thus there is a disease that is often called "ringworm" because the infection causes a scaly rash that spreads outwards from the initial site of infection.This gives rise to itching.Treated disease drug griseofulvin or imidazole-type antifungal creams.
Man hit two kinds of lice: Phthirus pubis, settling in the pubic hair (see. "Genital infections"), and Pediculus humanus, which settle on the head.Infection with the latest happening not only in contact with an infected person, but also through items such as combs and hats.Infestation causes severe itching.The disease is most easily diagnosed by examination of the scalp for the presence of tiny eggs ("nits") attached to the hair shaft.Lice themselves harder to detect.
They are attracted by clean hair, and it is impossible to get rid of them, if you use regular shampoo.The best treatment will tell you doctor or pharmacist: it includes special shampoos and often also for the emulsion of the scalp.Since lice eggs difficult to handle, and the treatment should be repeated in several steps to complete victory.
If your hair daily falling out of his head, replaced not normal hair, thin and short fluff, hair loss occurs.To varying degrees, it happens to almost all men and women.Hair loss can have various causes.The physical damage caused by hair loss are scars and burns that destroy the hair follicles, skin diseases such as dermatitis, psoriasis or allergic reactions, systemic diseases such as severe anemia, as well as the chemical pollution of the body (as in mercury poisoning).
Hair loss can also be caused by mental stress.This is because the hair growth associated with the production of the hormone, and it in turn is closely associated with the emotional state.Hair growth is resumed when the period of stress is left behind.In all the above cases, the hair will usually recover at curing the disease.But the most common type of hair loss is male pattern baldness.It is caused by exposure to the male hormone production by the hereditary factors of aging.This process can not be stopped by anything other than castration.It is still not open means not allowed to vosstanovitutrachennoe, but at least stop or even slow down the process of balding.
detected the effectiveness of minoxidil, allowing in some cases to restore thinning hair.It is available in the form of a lotion, which need daily treated hair.The drug acts as regularly applied, but at the termination of its use hair starting to thin again soon.The drug is expensive.
Nothing short of castration, can not slow down, stop and reverse the balding process.Other treatments in the form of creams, lotions, massage, shampoos, ultraviolet and infrared radiation do not work, and sometimes only hurt.
developing baldness can be reduced with the help of cosmetic surgery, hair implantation which implies a different place of the head (see. Below).
This is a traditional way to conceal hair loss.Basis is chosen hairpiece shaped bald head.For sticky hair and trimmed in accordance with the general haircut.The base may be hard or soft.Bases solid type made of fiberglass or plastic.Basics soft type is made of silk, cotton, terylene or nylon.Commonly used human hair, but to give a special color and structure may be added to animal fur.
Hairpiece fixed on the scalp adhesive strips on both sides of the tape.This reduces the chance of accidental wears off.Normally you need two identical chignon: to wear at a time, when you need cleaning or repairs.This significantly increases the cost.The main advantage of wearing a hairpiece - a more youthful appearance and acquire more confidence - Chignons also perform some functions of natural hair: heat insulation and protection from the sun.
Disadvantages include discomfort from sweating;the constant fear that the hairpiece can come off or thwart the wind, and embarrassment when it is certainly a case;the need to protect the hairpiece from strong sunlight, as it can in this case faded and change color;time and maintenance costs.Good hairpiece must match the color and structure of the surrounding hair, perfect to sit naturally look to be resistant to sunlight and rain, close to the head, easy to clean and have a shelf wear at least a few years.Bad hairpiece finds himself surrounding unfortunate mismatch in color, unnatural color or emit line forehead.
This is a fairly new technology.Hair follicles are surgically removed from the places where they are abundant, and implanted in the bald head.But there is no guarantee that they will germinate in the new location.