Hair restoration for men is becoming more popular. While men in the old days didn't pay much attention to their hair problems, the more recent generations are more eager to go for hair restoration for men. The world seems to being putting greater emphasis on a person's looks. Because small issues like skin problems or hair loss are now treatable in a number of ways, people are more enthusiastic to look for options.
Before you choose a method of hair restoration for men, however, there are some factors to consider. The most important one is to know the reason for it. Is the hair loss a result of stress or a deficiency in nutrition? Do you, perhaps, have a medical condition that causes the hair loss? Are you taking any medications that might have this side effect?
Unfortunately, it is seldom any of the above. In most cases, hair loss in men is caused by androgenic alopecia, which means that your hair follicles are reacting to hormonal changes in your scalp. This is a genetic predisposition, which means that many of your male relatives may have the same problem.
When you have found out what problem you definitely have by asking a qualified doctor, find out the pattern of your hair loss. There are various patterns, and among them are the kind that recede at the temples, those that are simply a diffusion of thinning, and a loss that is centralized in a certain area of the scalp. There are also combinations of these patterns. You will have to acquaint yourself with the Norwood Scale, which helps you identify which pattern your hair loss belongs to. This will, in turn, help you to anticipate how it will look when the loss advances. Now, you are ready to choose your method of hair restoration for men.
It is not only vanity. Some men have been picked for a better position in a company over others because of their good looks. In some industries, looks are actually considered an investment. If you are able to afford hair restoration for men, it is highly recommended.
Learn more about hair restoration. Discover your options for the best hair restoration for men.
Article Source: http://EzineArticles.com/?expert=Kelsy_Shelby
Tuesday, February 22, 2011
4 Best Hair Loss Treatment Tips For a Scalp Care
It only makes sense that because hair grows out of your scalp, nurturing your scalp is an essential part of hair care. The scalp must be nurtured to create a hair growing environment. Nevertheless, you would be surprised how many hair treatment experts miss that point.
So-called "experts" will advise you to saturate your scalp in harsh chemicals hoping to somehow fertilize the hair follicle. Instead, they increase the existing toxins in your hair follicles which were causing the problem in the first place. They also damage the scalp, causing swelling and restricting hair growth.
Instead of chemical solutions, the best hair loss treatments focus on improving scalp health naturally and soothingly. A healthy scalp means a healthy hair follicle that is free to grow hair. If you want a healthy scalp, here are some tips to get you started:
1. Find A Balance Between A Clean Or Too Clean Scalp
Cleaning the scalp is an important part of the treatment for hair loss. It strips away the excess oil which contains the damaging toxins. It also removes germs which deteriorate the follicle's overall health.
You should clean your hair regularly. However, cleaning too frequently will clean away too much of your skin's conditioning oils and cause excessive drying. When this occurs, tiny dead skin cells will cover your scalp and clog the hair follicle. This restricts growth and limits the effectiveness of other scalp treatments.
You are the only one familiar with your scalp's sensitivity. You know how oily your hair gets and how long you can comfortably leave on scalp treatments. It is important you find a healthy balance which keeps your scalp clean but does not over-dry the skin.
2. Increase The Humidity At Night
This is actually a very popular treatment for other skin issues like psoriasis and eczema. Those patients know that a warm, moist environment promotes healing within the skin. Your skin of your scalp will respond the same way.
In your bedroom, the easiest way to create a moist healing environment is by buying a warm-heat humidifier. This will not only increase the moisture in your bedroom's air, but will raise the temperature. This should create a "growing atmosphere" which will help restore and revitalize your scalp.
3. Whenever You Get A Spare Moment, Give Your Scalp A Massage
It is a proven fact that massage stimulates healing by increasing circulation. In your scalp, this means the healing nutrients from your diet can more easily reach your ailing hair follicle. Almost all hair loss programs incorporate scalp massage, combined with a topical remedy, to stimulate new hair growth and stop hair loss.
In addition to a once a day intensive massage combined with a topical remedy, you should also grab any chance you have throughout the day to do a quick massage.
There may be a spare two minutes in the afternoon as you take a break from staring at work on the computer screen. You can massage for a few minutes while you wait for dinner to cook. There are many opportunities, so keep an eye out.
This will keep the blood flow stimulated throughout the day, lengthening the healing time. If you are already using a healthy shampoo which contains nutrients, a portion of those nutrients will be left on your scalp even after rinsing. Giving yourself a massage throughout the day will let those nutrients have better access to your ailing hair follicles.
4. Treat Hair Loss From The Inside And Out
These are excellent treatments for your scalp and hair. They will promote growth and help the hair follicle heal. However, treating your scalp from the outside can only do so much.
You can heal the hair follicle externally. However, this does not prevent the attack coming from the inside. Abnormal hormones, toxicity from foods, and other symptoms of generally poor health invade your scalp through the bloodstream. They attach to the tissue around the hair follicle, sickening it.
No matter how you nurture the hair follicle externally, another attack will soon make it sick again. The best hair loss treatment programs realize this can be a never ending process. You will eternally have to play catch up, forever healing your scalp. Forever, that is, unless you correct the problem internally.
Once you correct the problems inside your body, the attack on your hair will stop. This means your healing scalp treatments will be more effective. You will be able to heal the follicle once and for all and finally re-grow hair.
Curing hair loss is a dynamic challenge requiring a great strategy. The Hair Loss Black Book lays out a plan to stop the hormone imbalances and other problems internally which make your hair fall out. It also offers a plan to nurture your scalp back to health externally. This two-fold approach can finally give you the complete solution to hair loss.
Nigel T
Author of http://mhlnk.com
Article Source: http://EzineArticles.com/?expert=Nigel_T
So-called "experts" will advise you to saturate your scalp in harsh chemicals hoping to somehow fertilize the hair follicle. Instead, they increase the existing toxins in your hair follicles which were causing the problem in the first place. They also damage the scalp, causing swelling and restricting hair growth.
Instead of chemical solutions, the best hair loss treatments focus on improving scalp health naturally and soothingly. A healthy scalp means a healthy hair follicle that is free to grow hair. If you want a healthy scalp, here are some tips to get you started:
1. Find A Balance Between A Clean Or Too Clean Scalp
Cleaning the scalp is an important part of the treatment for hair loss. It strips away the excess oil which contains the damaging toxins. It also removes germs which deteriorate the follicle's overall health.
You should clean your hair regularly. However, cleaning too frequently will clean away too much of your skin's conditioning oils and cause excessive drying. When this occurs, tiny dead skin cells will cover your scalp and clog the hair follicle. This restricts growth and limits the effectiveness of other scalp treatments.
You are the only one familiar with your scalp's sensitivity. You know how oily your hair gets and how long you can comfortably leave on scalp treatments. It is important you find a healthy balance which keeps your scalp clean but does not over-dry the skin.
2. Increase The Humidity At Night
This is actually a very popular treatment for other skin issues like psoriasis and eczema. Those patients know that a warm, moist environment promotes healing within the skin. Your skin of your scalp will respond the same way.
In your bedroom, the easiest way to create a moist healing environment is by buying a warm-heat humidifier. This will not only increase the moisture in your bedroom's air, but will raise the temperature. This should create a "growing atmosphere" which will help restore and revitalize your scalp.
3. Whenever You Get A Spare Moment, Give Your Scalp A Massage
It is a proven fact that massage stimulates healing by increasing circulation. In your scalp, this means the healing nutrients from your diet can more easily reach your ailing hair follicle. Almost all hair loss programs incorporate scalp massage, combined with a topical remedy, to stimulate new hair growth and stop hair loss.
In addition to a once a day intensive massage combined with a topical remedy, you should also grab any chance you have throughout the day to do a quick massage.
There may be a spare two minutes in the afternoon as you take a break from staring at work on the computer screen. You can massage for a few minutes while you wait for dinner to cook. There are many opportunities, so keep an eye out.
This will keep the blood flow stimulated throughout the day, lengthening the healing time. If you are already using a healthy shampoo which contains nutrients, a portion of those nutrients will be left on your scalp even after rinsing. Giving yourself a massage throughout the day will let those nutrients have better access to your ailing hair follicles.
4. Treat Hair Loss From The Inside And Out
These are excellent treatments for your scalp and hair. They will promote growth and help the hair follicle heal. However, treating your scalp from the outside can only do so much.
You can heal the hair follicle externally. However, this does not prevent the attack coming from the inside. Abnormal hormones, toxicity from foods, and other symptoms of generally poor health invade your scalp through the bloodstream. They attach to the tissue around the hair follicle, sickening it.
No matter how you nurture the hair follicle externally, another attack will soon make it sick again. The best hair loss treatment programs realize this can be a never ending process. You will eternally have to play catch up, forever healing your scalp. Forever, that is, unless you correct the problem internally.
Once you correct the problems inside your body, the attack on your hair will stop. This means your healing scalp treatments will be more effective. You will be able to heal the follicle once and for all and finally re-grow hair.
Curing hair loss is a dynamic challenge requiring a great strategy. The Hair Loss Black Book lays out a plan to stop the hormone imbalances and other problems internally which make your hair fall out. It also offers a plan to nurture your scalp back to health externally. This two-fold approach can finally give you the complete solution to hair loss.
Nigel T
Author of http://mhlnk.com
Article Source: http://EzineArticles.com/?expert=Nigel_T
A Variety of Hair Loss Solutions
It's one of the most common problems experienced mainly by men and often enough by women. Hair loss has over 1.2 million searches registered on Google alone in a single month. Having a full healthy head of hair is not a health issue, although sometimes hair loss can be indicative of underlying health issues. However it is seen as a very important component of a person's image. It is an indication of youth to have good hair.
Psychologically men feel more confident with women and in life generally and for women a healthy head of hair is an essential part of their overall image. That is why so many of us are seeking solutions.
There are a variety of hair loss solutions being provided in the marketplace from medications and natural supplements to shampoos and conditioners as well as electronic devices that claim to assist with hair regrowth. Some of these solutions are self-administered and some are administered by professionals at a far greater cost of course. The following are the types of solutions available:
1. Hair Loss Medications. Minoxidil is a topical medication used to slow balding and increase hair growth. It cannot cure baldness. Once the treatment is stopped one can expect the increased hair growth to stop. It has side effects of possible irritation of the scalp and unwanted hair growth in other parts of the body. Finasteride is another popular hair loss medication. It works by inhibiting the enzyme that converts testosterone to dihydrotestosterone (DHT). It's effectiveness on female hair loss is questionable.
2. Hair Loss Shampoos and Conditioners. These types of products are primarily designed to handle androgenetic alopecia - the type of hair loss which comes about from the conversion of testosterone to DHT. However the active ingredients are usually herbal or plant based. The most common ingredient is Saw Palmetto extract which has been shown to be effective in this regard.
3. Herbal Supplements. These types of product can vary for men and women. Male supplements usually contain Saw Palmetto as well as Biotin and B vitamins. Female products also contain B vitamins, specifically B6 and Biotin as well as Horsetail Silica and PABA.
4. Hair Loss Devices. There are a few different types of electronic devices available that claim to assist with hair regrowth. Low Level Laser Therapy (LLLT) works on photo-biostimulation. That's a fancy word meaning the stimulation of cell activity by light. There are numerous studies which have reported results with using such a technique. This treatment is available at both professional hair loss clinics as well as with devices sold directly to consumers. Another type of device-based solution is Light Emitting Diode Therapy (LEDT). This is another form of light therapy also designed to energise the cells in the scalp and assist them to perform their functions more effectively.
Which form of solution you want to try will be determined by your budget, your preferences regarding medication versus more natural solutions and your past experiences regarding what you've heard about the effectiveness of different hair loss solutions. The first option is really the only one that can have any unwanted side effects.
For more information on option 3 - herbal supplements - you may wish to read a review of one of the more well-known supplements available - Provillus for Men and Provillus for Women. These reviews are available on Herbal Product Review.
Article Source: http://EzineArticles.com/?expert=Janos_Magyar
Psychologically men feel more confident with women and in life generally and for women a healthy head of hair is an essential part of their overall image. That is why so many of us are seeking solutions.
There are a variety of hair loss solutions being provided in the marketplace from medications and natural supplements to shampoos and conditioners as well as electronic devices that claim to assist with hair regrowth. Some of these solutions are self-administered and some are administered by professionals at a far greater cost of course. The following are the types of solutions available:
1. Hair Loss Medications. Minoxidil is a topical medication used to slow balding and increase hair growth. It cannot cure baldness. Once the treatment is stopped one can expect the increased hair growth to stop. It has side effects of possible irritation of the scalp and unwanted hair growth in other parts of the body. Finasteride is another popular hair loss medication. It works by inhibiting the enzyme that converts testosterone to dihydrotestosterone (DHT). It's effectiveness on female hair loss is questionable.
2. Hair Loss Shampoos and Conditioners. These types of products are primarily designed to handle androgenetic alopecia - the type of hair loss which comes about from the conversion of testosterone to DHT. However the active ingredients are usually herbal or plant based. The most common ingredient is Saw Palmetto extract which has been shown to be effective in this regard.
3. Herbal Supplements. These types of product can vary for men and women. Male supplements usually contain Saw Palmetto as well as Biotin and B vitamins. Female products also contain B vitamins, specifically B6 and Biotin as well as Horsetail Silica and PABA.
4. Hair Loss Devices. There are a few different types of electronic devices available that claim to assist with hair regrowth. Low Level Laser Therapy (LLLT) works on photo-biostimulation. That's a fancy word meaning the stimulation of cell activity by light. There are numerous studies which have reported results with using such a technique. This treatment is available at both professional hair loss clinics as well as with devices sold directly to consumers. Another type of device-based solution is Light Emitting Diode Therapy (LEDT). This is another form of light therapy also designed to energise the cells in the scalp and assist them to perform their functions more effectively.
Which form of solution you want to try will be determined by your budget, your preferences regarding medication versus more natural solutions and your past experiences regarding what you've heard about the effectiveness of different hair loss solutions. The first option is really the only one that can have any unwanted side effects.
For more information on option 3 - herbal supplements - you may wish to read a review of one of the more well-known supplements available - Provillus for Men and Provillus for Women. These reviews are available on Herbal Product Review.
Article Source: http://EzineArticles.com/?expert=Janos_Magyar
Understanding The Norwood Scale Of Hair Loss Treatment For Men
As with almost all problems in life, the sooner you can confront hair loss the better off you will be. Here is some good news: even hair follicles which are not producing noticeable hair can still be saved if they have not actually died.
It is a problem which requires a strategic solution. What is the best first step of any great plan? Determine where you are starting from and what you assets are.
Since men's hairstyles are typically shorter and leave less room for "camouflage", you may have already been seeing each fallen hair as a ticking time bomb. You may have been staying up late and spending every spare moment researching male hair loss treatment options.
Before you get started down the wrong path, there is something you should know. Different treatment techniques will have different results depending on how advanced your hair loss is.
This is why it is important to learn evaluate your hair against the Norwood Scale of Hair Loss.
The Norwood Scale
The scale itself is not very complicated. It is how you interpret the results that matters. The Norwood Scale is universally accepted as the standard for evaluating the progress of male and female pattern baldness.
There are essentially 7 progressive stages in the Norwood Scale. Because some men first start losing their hair on their crown and others on their temple, each stage has two versions accordingly. Nevertheless, it should not be difficult to determine where your hair is at.
Stage 1- Most men never realize they have hair loss at this stage. They may not have noticed any excess shedding. More importantly, there is probably no noticeable thinning anywhere on your head unless you have been closely examining it for years.
Stage 2 - The hair loss is becoming evident, though probably only to you. This may have been when you first started researching hair loss treatment for men. While the hair is still retaining its overall shape, either the crown or the temples is noticeably thinner.
Stage 3 - At this point, the hair line may have clearly moved away from its original position, leaving only baby-fine hairs behind. You may also begin to notice some thinning on the back of your head at this point.
Stage 4 - The thinning hair on top of your head and the thinning on the back of your head are moving toward one another. The hair between the two areas is becoming increasingly bare.
Stage 5 - The area between the two spots has clearly merged into one balding zone. However, there are still normal hairs sparsely found in this area.
Stage 6 - There are only baby-fine hairs on top of your head and moving down to an area level with the top of your ears. Essentially, this is the hair's last chance at survival.
Stage 7 - The hair on most of your head has finally died. There are no more baby-fine hairs. The follicles have shrunken and disappeared completely, leaving only slick, shiny, smooth skin.
Translating The Norwood Scale
That was pretty simple, right? You should be able to give your hair loss an accurate number. Now, here is what that number means. Unless you are a number 7, your hair is still alive. It can still be saved, so it is time to explore how your number affects hair loss treatment for men.
First, a hair loss 101. Hair loss is a symptom of bigger health issues. Treat those issues, you stop the hair fall. Pills only treat the symptoms.
For some men hair loss treatment drugs have some benefits, but because the greater problem is not addressed they really only keep the problem at bay. Eventually, it will catch up to you and the hair loss will accelerate.
Anyone from stages 1 to 6 will have the best results using a natural, holistic approach to solve the deeper health problems which led to hair loss.
Some people at stage 5 or 6 may benefit taking extra pro-hair supplements and cleansing herbs to jumpstart the holistic healing process and prevent further hair loss.
Someone at stage 7 typically has only hair transplant available to them as an option. However, there are important things to know about this therapy.
First, there are only a handful of surgeons in this world who have a high success record for this surgery.
Secondly, it often takes many repeated treatments. Third, and most importantly, if you have not addressed the underlying health problem the transplanted follicle will eventually die as well.
Naturally, the lower your Norwood number is the more treatment options you have open to you. The lower the number the more quickly you will see results. The lower the number the more your hair will return to its original healthy, full state because the less hair has completely died.
However, no matter what your number, have real hope. You can save your living hair as long as you take action now.
No matter what your Norwood number, there is no reason to delay. So, before you advance to a higher number get a copy of the Hair Loss Black Book. With great but easily understood detail, the book will lay out a game plan to correct the problems causing your hair loss, reverse the shedding, and actually re-grow hair.
Nigel T
Author of HairLossBlackBook.com
Article Source: http://EzineArticles.com/?expert=Nigel_T
It is a problem which requires a strategic solution. What is the best first step of any great plan? Determine where you are starting from and what you assets are.
Since men's hairstyles are typically shorter and leave less room for "camouflage", you may have already been seeing each fallen hair as a ticking time bomb. You may have been staying up late and spending every spare moment researching male hair loss treatment options.
Before you get started down the wrong path, there is something you should know. Different treatment techniques will have different results depending on how advanced your hair loss is.
This is why it is important to learn evaluate your hair against the Norwood Scale of Hair Loss.
The Norwood Scale
The scale itself is not very complicated. It is how you interpret the results that matters. The Norwood Scale is universally accepted as the standard for evaluating the progress of male and female pattern baldness.
There are essentially 7 progressive stages in the Norwood Scale. Because some men first start losing their hair on their crown and others on their temple, each stage has two versions accordingly. Nevertheless, it should not be difficult to determine where your hair is at.
Stage 1- Most men never realize they have hair loss at this stage. They may not have noticed any excess shedding. More importantly, there is probably no noticeable thinning anywhere on your head unless you have been closely examining it for years.
Stage 2 - The hair loss is becoming evident, though probably only to you. This may have been when you first started researching hair loss treatment for men. While the hair is still retaining its overall shape, either the crown or the temples is noticeably thinner.
Stage 3 - At this point, the hair line may have clearly moved away from its original position, leaving only baby-fine hairs behind. You may also begin to notice some thinning on the back of your head at this point.
Stage 4 - The thinning hair on top of your head and the thinning on the back of your head are moving toward one another. The hair between the two areas is becoming increasingly bare.
Stage 5 - The area between the two spots has clearly merged into one balding zone. However, there are still normal hairs sparsely found in this area.
Stage 6 - There are only baby-fine hairs on top of your head and moving down to an area level with the top of your ears. Essentially, this is the hair's last chance at survival.
Stage 7 - The hair on most of your head has finally died. There are no more baby-fine hairs. The follicles have shrunken and disappeared completely, leaving only slick, shiny, smooth skin.
Translating The Norwood Scale
That was pretty simple, right? You should be able to give your hair loss an accurate number. Now, here is what that number means. Unless you are a number 7, your hair is still alive. It can still be saved, so it is time to explore how your number affects hair loss treatment for men.
First, a hair loss 101. Hair loss is a symptom of bigger health issues. Treat those issues, you stop the hair fall. Pills only treat the symptoms.
For some men hair loss treatment drugs have some benefits, but because the greater problem is not addressed they really only keep the problem at bay. Eventually, it will catch up to you and the hair loss will accelerate.
Anyone from stages 1 to 6 will have the best results using a natural, holistic approach to solve the deeper health problems which led to hair loss.
Some people at stage 5 or 6 may benefit taking extra pro-hair supplements and cleansing herbs to jumpstart the holistic healing process and prevent further hair loss.
Someone at stage 7 typically has only hair transplant available to them as an option. However, there are important things to know about this therapy.
First, there are only a handful of surgeons in this world who have a high success record for this surgery.
Secondly, it often takes many repeated treatments. Third, and most importantly, if you have not addressed the underlying health problem the transplanted follicle will eventually die as well.
Naturally, the lower your Norwood number is the more treatment options you have open to you. The lower the number the more quickly you will see results. The lower the number the more your hair will return to its original healthy, full state because the less hair has completely died.
However, no matter what your number, have real hope. You can save your living hair as long as you take action now.
No matter what your Norwood number, there is no reason to delay. So, before you advance to a higher number get a copy of the Hair Loss Black Book. With great but easily understood detail, the book will lay out a game plan to correct the problems causing your hair loss, reverse the shedding, and actually re-grow hair.
Nigel T
Author of HairLossBlackBook.com
Article Source: http://EzineArticles.com/?expert=Nigel_T
Saturday, February 19, 2011
Hairisol Reviewed, Can Hairisol Really Reverse Balding and Regrow Your Hair?
So you are tired of looking at your scalp and are tired of all the bogus products on the market today.
Well, then you are like most of the 40 million Americans who suffer from the genetics involved in balding.
Very much like you, I have dealt with balding most of my life. Even in High School my confidence was shot down by the fact that my hair was getting thinner every day.
I always felt confused about why this was happening to only me.
I came across Hairisol after a co-worker of mine recommended it to me.
This has been a life changer for me!
I have tried a ton of products that are on the market today and none of them hold a candle to Hairisol. I have tried the shampoos, creams, and foams with no success what so ever.
Hairisol gave me noticeable results in less than two months and has continued to reverse my balding ever since.
What does Hairisol Do?
The active ingredient in Hairisol is called Minoxidil. In a nutshell, Minoxidil encourages blood flow to wherever it is applied.
Putting this on your scalp causes an increase in blood flow and causes your hair to regain its ability to grow!
After using Hairisol
I feel MUCH more confident now that my hair is coming back in full force! I have even received a comment or two about how much younger I look!
I will continue to use Hairisol in the future simply because it works!
But Will Hairisol Work For You?
Everyone is different and Hairisol is bound to work better for some than others. You should go see my blog here: Hairisol Reviewed
Is it really possible to reverse hair loss and get your full head of hair back? Find out here http://mhlnk.com/F83275FF
Article Source: http://EzineArticles.com/?expert=Michael_Pergrem
Well, then you are like most of the 40 million Americans who suffer from the genetics involved in balding.
Very much like you, I have dealt with balding most of my life. Even in High School my confidence was shot down by the fact that my hair was getting thinner every day.
I always felt confused about why this was happening to only me.
I came across Hairisol after a co-worker of mine recommended it to me.
This has been a life changer for me!
I have tried a ton of products that are on the market today and none of them hold a candle to Hairisol. I have tried the shampoos, creams, and foams with no success what so ever.
Hairisol gave me noticeable results in less than two months and has continued to reverse my balding ever since.
What does Hairisol Do?
The active ingredient in Hairisol is called Minoxidil. In a nutshell, Minoxidil encourages blood flow to wherever it is applied.
Putting this on your scalp causes an increase in blood flow and causes your hair to regain its ability to grow!
After using Hairisol
I feel MUCH more confident now that my hair is coming back in full force! I have even received a comment or two about how much younger I look!
I will continue to use Hairisol in the future simply because it works!
But Will Hairisol Work For You?
Everyone is different and Hairisol is bound to work better for some than others. You should go see my blog here: Hairisol Reviewed
Is it really possible to reverse hair loss and get your full head of hair back? Find out here http://mhlnk.com/F83275FF
Article Source: http://EzineArticles.com/?expert=Michael_Pergrem
Wednesday, February 16, 2011
Hair
Hair is a filamentous biomaterial, that grows from follicles found in the dermis. The human body, apart from its glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair. Most common interest in hair is focused on hair growth, hair types and hair care, but hair is also an important biomaterial primarily composed of protein, notably keratin.
Found exclusively in mammals, hair is one of the defining characteristics of the mammalian class.[1] Hair-like structures, called cilia, but which are not classified as hair, are visible in organs such as the nose and ear and these structures also occur in many other organs of mammals, other animals, and plants. Although non-mammals, especially insects, show filamentous outgrowths, these are not considered "hair" either, in the scientific sense. These so-called "hairs" (trichomes) also are found on plants. The projections on arthropods, such as insects and spiders, are classified as bristles, which are composed of a polysaccharide called chitin. There are varieties of cats, dogs, and mice bred to have little or no visible hair (fur). In some species, hair is absent at certain stages of life.
Hair often refers to two distinct structures: 1) the part beneath the skin, called the hair follicle or when pulled from the skin, called the bulb. This organ is located in the dermis and maintains stem cells which not only re-grow the hair after it falls out, but also are recruited to regrow skin after a wound;[2] and 2) the shaft, which is the hard filamentous part that extends above the skin surface. A cross section of the hair shaft may be divided roughly into three zones. Starting from the outside: 1) the cuticle which consists of several layers of flat, thin cells laid out overlapping one another as roof shingles, 2) the cortex which contain the keratin bundles in cell structures that remain roughly rod-like and in some cases, 3) the medulla, a disorganized and open area at the fiber's center.[3]
Found exclusively in mammals, hair is one of the defining characteristics of the mammalian class.[1] Hair-like structures, called cilia, but which are not classified as hair, are visible in organs such as the nose and ear and these structures also occur in many other organs of mammals, other animals, and plants. Although non-mammals, especially insects, show filamentous outgrowths, these are not considered "hair" either, in the scientific sense. These so-called "hairs" (trichomes) also are found on plants. The projections on arthropods, such as insects and spiders, are classified as bristles, which are composed of a polysaccharide called chitin. There are varieties of cats, dogs, and mice bred to have little or no visible hair (fur). In some species, hair is absent at certain stages of life.
Hair often refers to two distinct structures: 1) the part beneath the skin, called the hair follicle or when pulled from the skin, called the bulb. This organ is located in the dermis and maintains stem cells which not only re-grow the hair after it falls out, but also are recruited to regrow skin after a wound;[2] and 2) the shaft, which is the hard filamentous part that extends above the skin surface. A cross section of the hair shaft may be divided roughly into three zones. Starting from the outside: 1) the cuticle which consists of several layers of flat, thin cells laid out overlapping one another as roof shingles, 2) the cortex which contain the keratin bundles in cell structures that remain roughly rod-like and in some cases, 3) the medulla, a disorganized and open area at the fiber's center.[3]
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