Hair Color

When the Americans prefer a woman with blonde hair, then the British people were more like a woman with red hair. Music for the American people seem more sexy red while slightly bitchy. While the British think just the opposite. What is clear, we must be careful with girls who like "other" hair color. Why?

It's more a matter of taste. But you know, the tendency to change hair color associated with the nature and personality. "This is related to one's level of honesty and loyalty," concluded Dermoline, producer of equipment for the hair from Italy, which this study.

In other parts of Dermoline concluded that the woman who likes to change hair color, tend to like to lie and have a low level of loyalty to her lover. Dermoline also found that women who chose red hair color (red), almost certainly has a penchant for lying and very loyal.

"Women with red hair copper (copper) or accidentally dyed her hair red, for example, has a high confidence level and the case will be strong," wrote Dermoline. "All the dangerous red. Conversely, blond or brown, and even more loyal." Why?

Could be. According to Italian sexologists, Willy Pasini, want to change the hair color is usually associated with a lack of effort to conceal and cover up the body parts that are considered less attractive. "Speaking of color, red color is associated with a warm heart attack, while a blonde and brown color is more calm and elegant," says Pasini.

For women, be sure to select the color. Except it does not bother you a degree as a dangerous woman. There is also concern on the side of good health because it causes bladder cancer cat fur!

Why do we have differences in hair color? In other mammals hair color is quite important for camouflage. Leopards' spotted coats or tigers' stripes blend into the background and thus helps with stalking prey. However, as a rule humans do not use their hair for camouflage.

To some extent hair color may help with protecting the skin from ultraviolet light damage. Dark skin protects from the damaging effects of UV light better than light skin. Not surprisingly, people with dark skin usually have dark hair too. The pigment in hair may protect the hair from weathering due to the effects of sunlight. However, hair of any color has an equal ability to protect the scalp from UV rays. It is the density of the hair that is important in skin protection rather than the hair color. Thus hair color in itself has little effect in skin protection.

Thus overall, hair color in humans is mostly due to the nature of the genetics that underlie skin color and the environmental factors that impacted on our ancestors. Pale skinned and thus blonde haired people live predominantly in the extreme north (e.g. Scandinavia) where limited sunlight exposure means not a lot of melanin is required. In contrast, dark skinned and thus dark haired people live close to the equator where pigment helps protect against UV damage to the skin. In the modern world where people can travel vast distances easily, these geographic distinctions in hair color break down, but in ancestral terms the principle is clear.

In humans today hair color plays a mostly psychological role - it is an indicator reproductive health and possibly a power display. In the same way that birds with brightly colored plumage attract a mate with displays of their eye catching colored feathers, so humans may attract mates based on their physical image. Hair and hair health is a particularly important feature in sexual attraction. As part of that, hair color may have a role. Apparently gentlemen prefer blondes.


Color may be an indicator of general health. Albinos mammals and birds are usually shunned by their peers and parents. In the wild they rarely survive for long. In human populations albinism is also a barrier to marriage and reproduction. In past times infanticide of albino babies was common.

A prime example of hair color used as a power display, the senior males in groups of mountain gorillas develop gray hair. The so called "silver backs". This provides a very clear indicator of their power and leadership within the group. To some extent the same may be true for humans. Gray hair can be regarded as an indicator of wisdom. However, more commonly gray hair is taken as an indicator of age and reduced reproductive potential. The result being that many people dye their gray hair in an attempt to conceal their biological age.

Use of hair dye is primarily associated with sexual attraction, exhibitionism or in contrast, trying to blend in with their peers. Currently in Germany, red dyed hair for women is incredibly popular despite the fact that natural red hair in the German population is very rare - affecting less than 1% of the population. So on the one hand, German women want to stand out from the crowd with their red hair and on the other hand they are trying to conform to the image of their peers.

Hair fiber has no color, bleach any hair and the fiber looks white simply because it reflects light. Hair color is provided by pigments produced by cells called "melanocytes". The pigments are called "melanin". Melanin actually means black so strictly speaking we should only use this word when talking about black hair. However, today scientists and dermatologists use the word melanin when talking about any kind of hair pigment blonde, red, brown, or black.

In humans, melanocyte cells are found diffusely scattered in the skin and also in little clusters in the hair follicles. Melanocytes respond to various stimulants to produce more or less melanin. Sunlight exposure makes the melanocytes in the skin produce more pigment and we get a tan (unless you are of Celtic ancestry like me). In some other mammals, such as rats and mice, melanocytes are exclusively found located in hair follicles and not in the skin between the hair follicles. Rats and mice cannot get sun tans. But I digress. The melanocytes of the skin and the melanocytes of the hair follicles are essentially the same. It is thought that the melanocytes in hair follicles can act like a storage depot for supplying the skin with melanocytes. This becomes very apparent then the skin is damaged and depleted of melanocytes. Studies show the melanocyte cells migrate from the hair follicles to repopulate the melanocyte deficient skin.

Melanocytes in hair follicles are primarily located in the hair bulb at the bottom of hair follicles. They sit in a group just above the dermal papilla along with the matrix cells that produce the hair fiber. For the melanocytes, this is the ideal location to produce pigment and have it incorporated into the growing hair fiber. There are melanocytes located in other regions of the hair follicle such as the root sheaths that surround the hair fiber. However, it is thought that these melanocytes do not significantly contribute to coloring the hair fiber.

Melanocytes produce melanin pigment proteins in their cell cytoplasm. The pigment is accumulated in membrane bound vesicles in the cell called "melanosomes". Melanocytes are usually very easy to identify in a skin biopsy because they are full of these melanosomes. In black hair producing follicles, the melanosomes in the melanocytes are very large oval shaped and gradually become densely filled with pigment proteins. People with lighter colored hair have less melanin protein in their melanosomes. Blonde haired people have melanosomes with a low density and patchy deposition of melanin. People with red and blonde hair have melanosomes that are smaller and spherical in shape and the individual melanin pigment granules inside the melanosomes are also smaller.

The matrix keratinocytes that produce the hair fiber cluster around the melanocyte cells. The melanocyte cells release their melanosomes to the keratinocytes through dendritic processes. The keratinocytes actively phagocytose the melanosomes (which means the keratinocytes "eat" the melanosomes by surrounding them and pulling them into the cell). Once the keratinocyte cells have melanosomes inside them they are then formed into the hair fiber and thus the hair fiber has color.

from : http://www.keratin.com