Posts Tagged ‘Exact Mechanism’
Hair loss can be caused by different factors but heredity is the number one reason why men and women lose their mane. Hereditary hair loss in men and women has the same leading cause, which is dihydrotestosterone (DHT) attacking our hair follicles. DHT is a metabolite of the male hormone testosterone but it is also available in the female body. Men and women lose their hair not because of increased levels of DHT in their bodies but due to the susceptibility of their hair follicles to DHT attacks, although the exact mechanism and reasons why certain hairs, mostly those on the top of the head, are more vulnerable to such attacks are not yet know.
The main difference between the male and female form of hereditary hair loss is in its shape. The male form has a characteristic horseshoe pattern whereas the female form is typically a diffuse thinning across the entire scalp and is thus less easily-recognised. The female form of hereditary baldness is, in its form, practically indistinguishable from hair loss caused by various other factors. The second most common reason for a woman to lose her hair is hormonal imbalances during and after pregnancy or menopause. Such changes are typically of a temporary nature and so also is the hair loss, although post-menopausal hair loss is in most instances permanent.
When it comes to treating hair loss in women there are a number of specifics. First, most women do not make very good candidates for hair transplantation due to their diffuse thinning pattern, which makes it impossible to clearly identify the hair that will be resistant to future miniaturisation. Secondly, finasteride, which is one of the only two FDA-approved hair loss treatments available today, cannot be used in women and neither can dutasteride, which is its closest and assumedly yet more powerful relative. Rogaine (generic name minoxidil) is the second FDA-approved hair loss treatment and its approved concentration for women is only 2% versus 5% for men. However, many doctors around the world recommend their female patients use male formulations of minoxidil, with a concentration of 5%, such as Rogaine foam. Aminexil is a molecule similar to minoxidil and it is often recommended to women who are pregnant or breastfeeding as a safer option than minoxidil.
Although some antiandrogens such as finasteride (better known as Propecia) or dutasteride cannot be prescribed to women, there are other antiandrogen medications that can be effectively used to treat baldness in women. Spironolactone (trade name Aldactone) and cyproterone acetate (used in contraceptives such as Diane 35, Diane 50 and Ginette 35) are antiandrogens most commonly used to treat female pattern baldness.
Another treatment with satisfactory rates of success is topical estrogen solutions such as Crinohermal, which use a female hormone, estradiol, as their main active ingredient. Estradiol is capable of inhibiting the conversion of testosterone into follicle-harming DHT. Hormone replacement therapy is another hormonal treatment suitable for women at menopause, with estrogens and progesterone pills and creams being the most common forms of treatment. Estrogen levels in the body decline with time. As women enter the menopause, estrogen levels decline and thus more of the male hormone testosterone is then available to be converted into follicle-harming DHT.
The above list of treatments for female pattern hair loss is not exhaustive, though. A number of other remedies exist that are often claimed to help promote hair growth in women, such as ketoconazole, fluridil, flutamide, alfatradiol, as well as numerous substances of natural origin. Despite the fact that there are female patients who will swear by some of these treatments, none of them has ever been sufficiently clinically tested, let alone approved by any major national health supervisory authority as a treatment for female hair loss and the claims of their guaranteed effectiveness should be taken with a grain of salt.
When it comes to treating hair loss in women there are a number of specifics. First, most women do not make very good candidates for hair transplantation due to their diffuse thinning pattern. Secondly, finasteride, which is one of the only two FDA-approved hair loss treatments available today, cannot be used in women and neither can dutasteride, which is its closest and assumedly yet more powerful relative.
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Hair loss affects up to 80% of men and 50% of women, and in most cases androgenetic alopecia is to blame. This article explains how Skull Expansion is the true cause of hair loss and why the conventional reasons given to explain it are wrong!
There’s no doubt that male sex hormones (androgens) somehow cause hair loss in those with the genetic predisposition towards it. Furthermore, dihydrotestosterone (DHT) is the androgen directly linked to this process.
However, genetics and male sex hormones do not fully explain the exact mechanism that will cause hair loss to start. That’s because they can’t answer the following questions:
Q1. Why do some people lose hair from the front (receding temples), the back (a bald patch), or both these regions of the scalp?
Q2. Why is it that hair can fall faster in one region of the scalp than it does in the other, and start at different times in a person’s life? (E.g., about 20% of men start losing their hair at puberty but most don’t start until they’re much older).
Q3. How can DHT be linked to both hair loss and hair growth? (DHT will, during puberty, stimulate hair to grow in other parts of the body).
These are all very relevant questions about the hair loss process. So, it’s important that complete and accurate answers are given before any theory can be acknowledged as the true underlying cause of androgenetic alopecia.
It now seems more likely that the actual mechanism that causes this type of hair loss is Skull Expansion. Here’s a very brief explanation of how this process causes genetic hair loss:
When you’re growing up into an adult, your skeleton obviously gets bigger and bigger. This, of course, includes the skull, which not only grows in size but also changes shape.
Once you reach adulthood, this process (called bone remodelling and resorption) then continues throughout life. For some, this simply involves maintenance of the bones (i.e., keeping them strong and healthy). But, for those who suffer hair loss, this process will cause the frontal and parietal bones of the skull to grow.
This is Skull Expansion, and is the direct cause of hair loss within the male pattern baldness (MPB) region of the scalp.
The genetic link to male pattern baldness is due to the skull shape you inherit. Different skull shapes will have different growth potential (this simply means that the predisposition towards Skull Expansion will vary). The extent to which you lose hair is directly related to the extent to which your skull will expand. Obviously this means that greater Skull Expansion will cause more hair loss.
Only Skull Expansion can provide answers to all of those earlier questions:
A1. Hair loss at the front is caused by Skull Expansion of the frontal bone. A bald patch at the back is caused by Skull Expansion of the parietal bones. And hair loss at the front and back of the scalp simultaneously, is caused by Skull Expansion of both frontal and parietal bones.
A2. The different rates of hair loss between the front and back of the scalp depend upon the skull shape you inherit and its growth potential. That’s why your hair loss could start as early as puberty or much later on in life.
A3. DHT can stimulate hair growth, but it also encourages bone growth. Androgens like DHT are steroid hormones which have an anabolic effect on bone formation (i.e., they make it grow!) DHT causes Skull Expansion, which then causes hair loss to start.
So, now you know that the true cause of genetic hair loss is Skull Expansion. And, should you be in any doubt, why not simply contact a hair specialist, ask those questions, and see what answers you get!
For further illustrated details about the Skull Expansion process, visit www.top-hair-loss-remedy.com/hair-loss.html
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Hair loss affects up to 80% of men and 50% of women, and in most cases androgenetic alopecia is to blame. This article explains how Skull Expansion is the true cause of hair loss and why the conventional reasons given to explain it are wrong!
Information about the Author:
Hair Loss Articles: http://www.article-buzz.com