Sunday, April 5, 2009

Hair: DNA password cracking tool

Hair is a unique human characteristics, it is our part of the body, but also has its own independent life. It is human life at every occasion in layman's language, are a symbol of culture, are the feelings of support, and is a historical record, sometimes even a political tool. We know human hair or the best window of its own, far beyond the information provided by our imagination.
Sisters are a child of my "fans" back her hair, the look of faces in the air forever engraved in my mind. Her older my four-year-old, and did not in and I together . Her hair is soft and smooth, with a point of unsolicited natural roll. Mother said she was born with lanugo Maunsell, has been so reluctant to cut until after the busy school before first hair cut short. I remember, there is a period of time her mother's hair has become a hot hair shawl Large child, with a red plastic bow with a hairpin, in particular, foreign flavor.

A long time, the elder sister of my little girl is full of great girls on the attachment and admiration, often can not help but suffer at her side, his hands playing with her hair, one hair at continuously through the fingers, as if oily poisonivy.

That was my initial fascination of hair power: Finger on the hair and winding shows a close relationship to another person, because for me, the hair can be approached to play the Sisters are not many opportunities, if the day of her feelings good, he made me want to comb their hair, braids for months, and that is what I am most happy. I usually will want a "sub-style climb shrimp" (that is from one side of the head start for along the entire first series on the outer circle), because this hair-style the most complex, the required time. Close your eyes, feel the Sisters thin fingers across the scalp, hair continuously provoke one, then put them together tightly for some pain, but it is an enjoyment for me. My hair is short and hard, do not look good for After hair braided neutrality always shoot out, like the shrimp can see the feet of sub-climb, like the hair have to have to. But I will still be top of the head at the whole day until a little bit of hair.

And the elder sister the other hand, my short hair is from a young age, always with a group of boys on . Short hair do not know my shape, personality, or my character is only suitable for short hair. This situation was not until after I have changed on the University. The first day of school, the elder sister told me, we must put the hair in the military to stay a long time, because my mother can not have my hair cut regularly for the. The first summer vacation, when my long hair under a straight go home, almost all of them feel that I have changed, more women, and beautiful. This is me finally draw attention to their hair, it is so good, put in the shoulder is a gentle, set in the back is a charming, can be tied into a pony tail can also be screwed into Serratula 2. My school where the majority are girls, not from the hair is one of the topics. As a result of our practice communicate with the performance of learn how to use hair "style." Date girls in a dormitory before the other person will act as designers and Barber Hair Style. My companions at once with the help of the head of one braiding head the night sleeping infants, the second day of opening is the most fashionable hair shawl. My character seemed to change day long, at least I did not say people are

Sometimes, I think, is the style of hair, they almost speak of a person, means that every time a new change, it and the body, mood, personality complement each other, it at every occasion of life in simple terms. Hair are part of us, with us together face modified to show temperament. Imagine if the Mona Lisa is a skinhead, but also will not be immortalized like this? And sometimes, it seems independent of the hair outside the human body, it is difficult to make we want to shape, with the Western saying "good hair day" and "bad hair day" to describe its impermanence. Mind when we look forward to, seated in the barber shop, barber's scissors allow inter-migration at hair or hair syrup add 1 continuously, on cylinder volume at hair, put on plastic cap, the kind of fantastic experience, seems to sort out the past at the time, put all the removal of old or re-engineering. God-given human hair, it seems that in order to make people, especially women are at a big fuss over it on.

However, from a scientific point of view, the hair of non-God, but human at the product of evolution. Imagine millions of years ago, when the human body and limbs on the hair reduced to negligible proportions, the ancestors of human beings in broad daylight, such as dense bush-like head of hair, who was running naked, in the eyes of other primates are ah how incredible. How to choose our ancestors

Shedding most of the body and limbs, hair, leaving only the head of the one that Rui Wei Cong?

Now the remote can only rely on the history of modern humans at the imagination and the clues in that rare, because until recently, it seems that no one has devoted to the evolution of hair and make specific discussion. Jilin University in accordance with the Frontier Research Center for Archeology Professor Zhu Hong, director of the argument, when the birthplace of humanity at a time in Africa a sudden drastic changes have taken place, the natural catastrophe in human ancestors survived the past had to change the way of life, from habitat back to the dense forests surrounding grasslands on thin tree trunks. Grasslands in order to avoid those fierce, fast-running predators, but also in order to capture some small animals for food, those who have to learn to apes Express or long deserted at distances on flat grassland. Imagine, in the grasslands of Africa under the scorching sun, the huge consumption of physical activity for all of these animals with hair thermostat is clearly very harmful, so the natural choice, the body hair gradually degraded in order to speed up the heat, reducing temperature. But at the same time, the hot African sun is almost directly on the head if the head temperature is too high, it may affect survival. For humans, but the brain is more developed than other animals, more fragile and more places in need of protection, so head on retained on the hair.

May be that the hair on his head was at the evolution of "reservations" down is not accurate. A notable problem is that our hair and animals (such as our close relatives chimpanzees) compared to body hair, is almost totally different. For instance, human if not the haircut, the hair will grow longer, some Hindu monk, or those in remote rural areas in our hair sister to the show boundless vitality of the hair, but the chimps who have seen the look hair ?

I have a magazine to see someone on this had been discussed, the United States Washington University in St. Louis Rumsfeld and his doctor friend, a professor of anthropology at the trial doctor found that human hair The keratin content (keratin is a fibrous protein, is the formation of hair, fingernails, rhinoceros horn, as well as many animals basic external features of the chemical) and animal hair keratin content is not the same. Chimpanzees and gorillas to produce keratin DNA to humans, but not by the use of human cells have a protein, this "pseudogenes" are possible cause of human hair and animal hair of a different factor.