The reasons for alopecia prematura
Mental factors: Many patients often prior to the onset of trauma, anxiety and tension in history. If patients a variety of checks, they can not see what there is a basis for visceral disease. clinical
Drug factors: Some chemotherapy drugs such as cyclophosphamide, fluorouracil, bleomycin, actinomycin D, VCR, VDS, colchicine class, Cephalotaxus alkaloids, Ara-C and so on can cause alopecia. Arsenic, metal thallium, selenium poisoning, etc. will also cause severe hair loss.
Nutritional factors: the decrease in food intake can slow hair generation; if reduced protein content in food, even if the normal amount of food may also have inhibited the growth of hair; low-fat or no fat can cause alopecia, but too much ingestion of fat can also sebaceous gland hypertrophy, hyperthyroidism, affecting hair growth. a lack of vitamin A can cause hair to fall off; a lack of vitamin B family pantothenic acid can cause hair to dry and the lack of color. The lack of zinc can cause hair iron The expulsion; the lack of copper can reduce the hair's pigment.pharmaceutical
Autoimmune factors: some studies that autoimmunity in the pathogenesis of alopecia areata play a role in alopecia areata the hair follicle at the lower part of a T-cell infiltration, some patients can be detected in serum autoantibodies such as anti-thyroid, anti-parietal cell antibodies and so on.
Congenital factors: congenital factors such as: developmental defects, various syndromes, such as early as prolonged illness caused by missing or sparse hair completely; follicular dysplasia cause hair valuables easily broken. Congenital alopecia is an autosomal dominant genetic disease, more common in consanguineous marriage of the child-bearing offspring.
Improper care and man-made factors:
1), all day long wearing a hat will be oppressive scalp blood vessels, affecting blood circulation. Especially in the hot summer, hats impede ventilation, the easy to make hair loss a long time;
2), excessive alcohol can cause gastrointestinal diseases, thus affecting the protein, vitamins and other nutrients for digestion and absorption; wine contained in the preservative on the fitness of hair also has a great negative impact.
3), frequent consumption of carbonated drinks for the digestive system a stimulus, causing digestive disorders, affecting the absorption of nutrients caused by hair loss;
4), excessive exercise can also affect the health of hair, there will be soft, silk hair and cause hair loss;
5), a long time to live in air-conditioned room, can cause increased dandruff and alopecia.
Improper hair care and hairdressing
1), with a knife tip easy to damage hair shaved his head, medulla, hair cortex and hair skin, hair, often appear the phenomenon of bifurcation and fracture, especially shaved his head, immediately after the perm, the hair is more harmful. Cut hair with scissors and will not damage the originator, the hair to be healthy to continue to grow;
2), perm, hair properly can damage hair cortex. Perm hair cortex in the water soluble protein and fat, so that softens the hair wavy; hair dye can remove the melanin inside the hair cortex, hair dye and then infiltrated in. Therefore, perming agents, hair dye quality, using the dosage and application method is important, correct and proper use of hair and reduce its harm;
3), excessive use of hair dryer hair damage hair cortex and medulla, so that the hair dry, bifurcation, thinning until the expulsion; pharmacutical clinical contract research projects trade
4), hairbrush and comb select the incorrect method does not correct can damage the hair. Can generate electrostatic interaction of the nylon hair brushes, hair may produce up to hundreds of volts of static electricity from the hair root hair shaft spread to discharge, resulting in pores and the hair root organizations bubbles, Hisayuki, pores and completely loose from the hair root, while the aroused alopecia; wire brushes made of hair brushes with scoparia can damage hair, we should not choose the best choice of rubber or plastic hairbrush or a wooden comb horn;
5), shampoo agent will affect the hair, the improper selection of bodybuilding. Sale of petroleum series of shampoo, hair conditioner, cause damage to the scalp of sebum components, resulting in an increase in dander, dry scalp.Bayer Pharma
Hi there,
Interesting, I`ll quote it on my site later.
[url=http://www.wwdnla.com/]Miato[/url]