In february, two dragons rose, and in february, the custom of shaving the head of a human being and producing silks was used by many parents to clean their children's hair and look forward to a new year of peace and healthy growth。
We comb our hair almost every day, wash our hair a few days later, and it's common practice, but do you care about these long, short, straight or curly lines? Indeed, hair not only forms part of our appearance, but also hides many secrets about our bodies。
Composition of “development”
The skin covers the body surface and is the largest organ of the human body. Hair is an accessory to the skin and a person has about 5 million hairs all over his body, of which about 100,000 are hair。
And the hair became part of their bodies when our ancestors were still running on the prairie. Through evolution and development, hair has become a little guard on our skin, protecting the scalp。
Most of the hair consists of protein, which accounts for 60-95 per cent of the total. If you compare your hair to a super-powerful rope, the protein is the thread that weaves the rope so that your hair is resilient and resilient. Apart from proteins, there are small quantities of water, lipids, pigments and trace metal elements in hair。
Does it never seem to stop growing
Unlike other animals, human hair has a unique nature — it seems never to stop growing
In fact, hair isn't always growing. The fur bag is the “home” of hair, under the scalp, and is responsible for new hair. And our hairs seem to be growing constantly, mainly because of the special growth cycle of the fur bag — the long-term period of life, the period of absence and the period of recess。
In the long term, hair grows continuously, and this period can last for several years. When we entered the exit period, we began to shrink and our hair stopped growing, a period of two to three weeks. Finally, when the break is reached, the old hair drops, and the fur bag breaks for a while, and then again enters into a long life, with new hair。
Because hair is relatively long and at all times 80 to 90 per cent of hair is long, it appears to be growing。
Hair speaks
The growth rate of the hair varies from person to person, and generally the hair can grow about 1 cm per month. As the hair grows, its end becomes fragile and breakable, and growth slows with age。
The hair is not just decorative, it contains a lot of information about the body. We can learn a lot about our health by observing and analysing our hair。
Hair growth requires adequate nutrition and good physical condition. If a person lacks protein, iron or zinc, his or her hair may become dry, lightless or forklifted; if he or she spends the night often, his or her habits are bad and his or her hair becomes fragile and easily broken。
The hair also reveals our stress. When pressure is high, some changes in the body disrupt the growth rhythm of the hair. Furthermore, indicators of living environments can leave traces of hair, where heavy metals such as lead and mercury can accumulate through skin contact or breathing。
Hair rescue program
Since hair is so important as to reflect our health, we certainly need to take good care of them and promote their health by improving their physical state。
First, we need to ensure that the diet contains sufficient nutrients, such as proteins, vitamins and minerals; at the same time, the inappropriate use of tools such as wind blowers can damage hair, so that it can be used proportionately and rationally; when cleaning up, the use of mild shampoo; and in everyday life, the right time for learning and rest should be spent in a reasonable manner in order to remain happy。
Hair is not only a symbol of personal charm but also a recorder of health status. Next time we look in the mirror and see our hair, think, do we take good care of them
You're welcome to share your experiences in the comment section, or share your experiences, and protect your own and family's hair and health
"knowledge is power" celebrates the 70th anniversary of the launch of the scientific art collection. Set
There's a 70-and-a-half-year-old story about kopo road. As part of the implementation of the state council's opinions on the further implementation of artificial intelligence plus, on the occasion of the 70th anniversary of the launch of knowledge is power, all sectors of society are invited to use ai as their wing, creatively as a bridge for scientific dissemination in the form of music, theatres, poetry, etc., so that the power of knowledge can be embedded in people's minds, so as to build a new era of science-based ecology and creative energy。
Activity details: "knowledge is power" celebrates its 70th anniversary and the collection of scientific and artistic works has begun
Knowledge is power
All over the world looking for old readers
Knowledge is power 70, accompanying generations of chinese into science. The magazine looks for older readers, tells stories about its relationship to knowledge is power, helps to grow in science, leads more young people into reading, and walks into the world of science to feel the dynamic of knowledge is power in a new media environment。
We'll take our readers from it, and we'll give them to knowledge is power (in kind), and the best works will be presented on the theme of the new official media platform, knowledge is power, to make your scientific stories more infected
