What is a beard?
Beard, commonly known as beard, refers to the hair that grows on men's upper lip, chin, cheeks, cheeks or neck. If we want to distinguish carefully, "Hu" originally refers to the hair that grows on the mouth, while the upper lip is called "moustache" (in Cantonese, moustache, moustache and two-lipped beard), the chin is called "goatee" and the temple is connected with the chin.
Men after puberty generally have beards. Beard grows faster than hair, which is the result of androgen. The more vigorous the reproductive function, the faster the beard grows. Beard has more blood vessels than hair roots, and nutrients are easy to obtain. Therefore, the beard that has just been shaved will grow back in a few days.
How did you get the beard?
Growth and development
Various types of beards
A long beard is a sign of a man's secondary sexual characteristics. The emergence of secondary sexual characteristics is stimulated by androgen secreted in the testis after men enter puberty. Before 1 1 years old, there were few androgens in boys, and there was not much difference in signs between men and women. There is no strict time limit for the puberty development of boys, which is generally from 10 to 14 years old.
Beards grow quickly. A healthy man's beard grows 0.4 mm a day, which is faster than his hair (0.2 ~ 0.3 mm a day). This is because bearded blood vessels are more distributed than hair roots, and nutrients are easy to get. The average adult has about 25,000 beards, which vary greatly according to different individuals. Men grow beards from 13 years old to 14 years old, which is the most vigorous around 30 years old, and will gradually decrease after 30 years old, so the beards may not be shaved more and more.
The level of androgen in healthy men is basically the same, but the number of beards varies from person to person. Some people have thick beards, while others have sparse beards; Some people have beards, others have goatees. These are the differences under normal circumstances. It is normal that the number and shape of beards are related to ethnic and family inheritance. Don't worry at all.
Whether a man without a beard is morbid depends on the whole body development. If a man has no beard, but his reproductive organs and the above-mentioned secondary sexual characteristics develop normally, it is not morbid. It is normal for boys to grow beards at different ages, some years earlier and some years later, so don't worry at all. If you have entered puberty and have no beard, the secondary sexual characteristics are not obvious. Even after puberty, you are still undeveloped. This should be considered abnormal. It may be that there is something wrong with gonadotropin, which regulates the secretion of sex hormones, and it is necessary to go to the hospital for examination and treatment.
colour
Most people's beards are black, but of course some people's beards are brown or reddish brown. It is believed that the color of beard is determined by pigment cells, and pigment is obviously related to the metal elements contained. For example, black contains copper, cobalt and iron, brown is made of titanium, red is made of molybdenum, and white is completely free of these metal elements.
How to cut your beard?
Pull out a beard and leave a hole. After a long time, the cheeks become "orange peel".
Some people mistakenly think that pulling out their beards can reduce some of them. I don't know that pulling out the beard is only pulling out the upper part of the beard. Its roots remain in the hair follicle and the beard will grow back. At the same time, pulling out the beard can reflexively stimulate the vigorous growth of undamaged hair follicles, making the beard grow faster and more. In addition, thousands of different bacteria are parasitic on human skin, among which Staphylococcus aureus is very pathogenic. After the beard is pulled out, bacteria often enter the hair follicle, causing suppurative infection, forming folliculitis and then developing into furuncle. Even if it is cured, it may leave scars on the face and affect the appearance. Besides, the beard just grows in the "danger triangle" of the face. If the beard is pulled out to cause infection, bacteria may enter the intracranial cavernous sinus through the eye vein without venous valve, which will make the infection spread rapidly and cause infectious embolism, meningitis, brain abscess and septicemia of cavernous sinus. If the rescue is not timely, it will be life-threatening. So boys should not pull out their beards.
It can be seen that it is not good to pull out the beard. Only when the beard grows to a certain length, shaving it with a razor is the most suitable treatment.
Different beard types can also represent different personalities.
Different people with different beards can show their personality. Mr. Zhang's moustache looks shrewd and cunning; The beard of the terrorist Osama bin Laden is chilling. In Harry Potter, Dumbledore's long white beard further enhanced his solemn position.
In a word, Hu: I am married.
Beard: Start to enter the society, or have children.
Hu's descendants: His children are all married or have children.
Blackbeard: Brave and full of action.
Thin beard: civil servants are developed and rational.
Brown beard: smart, talented and emotional.
Thick beard: simple personality, integrity, impatience and easy to attract complaints.
Beard without luster: temperament is uncertain and repeated many times.
Glossy, soft and elastic beard: noble character, many people help.
A thick, hard beard that grows to the throat: most of them are ambitious.