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THE NORMAL HAIR GROWTH CYCLEIt is important to understand the normal hair growth cycle to understand why hair loss occurs. The hair follicle is an anatomical structure which evolved to produce and extrude (push out) a hair shaft. Hair is made up of proteins called keratins. Human hair hair grows in a continuous cyclic pattern of growth and rest known as the loss "hair treatments growth cycle". Three phases of the cycle exist: Anagen= growth phase; Catagen=degradation phase; Telogen= resting phase. Periods of growth (anagen) between two and eight years are followed by a brief period, two to four weeks, in which the follicle is almost totally degraded (catagen). The resting phase (telogen) then begins and lasts two to four months. hair Shedding of the hair loss occurs only after the next growth cycle (anagen) begins and a new hair shaft begins to emerge. On average 50-100 telogen hairs are shed every day. This is normal hair loss and accounts for the hair loss seen every day in the shower and with hair combing. treatments These hairs will regrow. Not more than 10 percent of the follicles are hair in the resting phase (telogen) loss at any time. A variety of factors can affect the hair growth cycle and cause temporary treatments or permanent hair loss (alopecia) including medication, radiation, chemotherapy, exposure to chemicals, hormonal and nutritional hair factors, thyroid disease, generalized or local skin disease, and stress.

In loss and treatments the United States it is estimated that 21 million women are affected by FPHL. The incidence in women has been reported to be as low as eight percent and as high as 87 percent. It does appear to be as common in women as in men. hair The hair loss in women becomes particularly notable in menopause.Androgens are responsible for hair loss in women by the same mechanisms they cause hair loss in men. Women do produce small amounts of androgens by way of the ovaries and adrenal glands. Also prehormones are produced by the ovaries that are loss converted to androgens outside of the ovaries or adrenal glands. treatments Women rarely experience hair total loss of hair in an area if the loss is due to FPHL. If they do they should be evaluated for an underlying pathological (disease) condition. In women, the process of miniaturization of the hair follicle is more random with some hair loss being unaffected. Normal thick hairs are mixed with finer, smaller diameter hairs. The end result is a visual decrease treatments in density of hair rather than total loss of hair. The hair growth cycle is affected as in men. The growth phase (anagen) is shortened hair resulting in shorter hairs and the resting phase (telogen) is increased resulting in fewer hairs.

Hamilton first noted that androgens (testosterone, loss dihydrotestosterone) are necessary for the development of MPHL. The amount of androgens present does not treatments need to be greater hair than normal for MPHL to occur. If androgens are present in normal amounts and the gene for hair loss is present, male loss pattern hair loss will occur. Axillary (under arm) and pubic hair are dependent on testosterone for growth. Beard growth and male pattern hair loss are dependent on dihydrotestosterone (DHT). Testosterone is converted to DHT by the enzyme, 5a -reductase. Finasteride (Propecia) acts by blocking this enzyme and decreasing the amount of DHT. Receptors exist on cells that bind androgens. These receptors have the greatest affinity for DHT followed by testosterone, estrogen, and progesterone. After binding to the receptor, DHT goes into the cell and interacts with the nucleus of the cell altering the treatments production of protein by the DNA in the nucleus of the cell. Ultimately growth of the hair follicle ceases.

Come here to find hair loss treatments. A University developed treatment to help reverse hair loss.

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