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It doesn't hurt when you cut your nails, but as long as you make a small cut, you will also feel pain, mainly because the transmission of the nervous system is working; There are nerve distributions in various parts of the human body, that is, there is a nerve endings in every part of the nerve distribution. When this part is damaged, the nerve endings will immediately report to the brain, and the brain will quickly make a judgment, and then tell the part whether it is painful or itchy through the herald, and the brain will also direct the hands or feet to protect and soothe it.
Therefore, wherever there is a distribution of nerves, there will be a feeling of pain. The base of the nail is also distributed with nerves and has a certain sense of touch. However, the exposed part of the nail, which is the nail surface, has no nerve distribution, so it does not hurt to cut the nail. <>
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We all know that when we are injured, we feel pain, and when we cut our nails, we cut a lot of them, but they don't hurt at all, why is that? Actually, this is caused by the relationship between nerves, so let me explain to you why it doesn't hurt to cut nails.
The structure and composition of the nail, the nail is equivalent to the **. The stratum corneum, but not living cells, is a thin plate composed of hard keratin, and the keratinocytes are tightly packed together.
Compared with the stratum corneum, the lipid content of the nail is less, about the, but the sulfur content accounts for more than 3%, which is more than the stratum corneum.
Although the shape of the nail is different from that of the hair, the amino acid composition of the nail is similar to that of the hair because of the same keratin protein.
Nails are formed from nail matrix cells. Nail blasts grow on top of the nail bed and along the nail bed in the direction of the fingertips. This is the phenomenon of nail growth.
The nail bed replenishes the nail moisture and, together with the nail profile, plays an adjustment role that makes the nail neatly elongate in a certain direction. The extension of the nail away from the nail bed is called the free margin of nail. Since it is difficult to replenish water, this part of the water is reduced, brittle and easily damaged.
The milky white part of the nail that has a half-moon shape at the base is called the nail half-moon (lunua). Here the nail is not fully formed and has not been sufficiently keratinized. The nail half-moon is somewhat soft compared to the rest of the nail and does not fully connect with the underneath.
The ** around the edge of the nail is called the nail profile, which is the posterior nail profile at the base of the nail and the lateral nail profile on both sides.
The epithelium that covers the nail is called the nail epithelium and plays a role in protecting the immature nail. Without nail epithelium, nails are susceptible to injury and sometimes cause new nails to be unusually shaped.
Because there are melanocytes between the nail blasts, the nail contains trace amounts of melanin.
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If people feel pain every time they cut their nails, then each of us will not cut our nails anymore, but will keep our nails long'Finish. However, we know that we don't feel any pain when we cut our nails, so why is that?
It turns out that this is because the nail is a special thing that grows out of the **, which is put together by dead cells, so that the nail itself has no sensation, so it will not hurt every time you cut the nail. Although it doesn't hurt to cut our nails, we also have to protect our nails well and not burn or burn them, otherwise, the nails won't grow back. While protecting our nails, we also need to pay attention to hygiene, so as not to let there be a lot of things in the nails, otherwise, children will get sick.
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Introduction: In our daily life, trimming our nails is something we often need to do, and we touch many things with our hands, such as eating and writing. Are inseparable from the hands, nails are easy to hide dirt and dirt, as the saying goes, disease from the mouth, if not pruned in time, it is easy to bring hidden dangers to our health.
1. Why does it not hurt to cut nails?
Why does it not hurt to cut nails Usually it hurts to accidentally make a small cut on the body, but there is no such pain when you cut your nails. This is because there is no nerve distribution on the exposed nails. There are nerve distributions in various parts of the human body, that is, there is a nerve endings in every part of the nerve distribution.
When this part is damaged, the nerve endings will immediately report to the brain, and the brain will quickly make a judgment, and then tell the part through the herald whether it is painful, sore, or itchy, and the brain will also direct the hands or feet to protect and soothe it, because there is no nerve, when the nail is damaged, there will be no pain. However, it should be noted that there is a nerve distribution at the root of the nail, as the saying goes, ten fingers are connected to the heart. If you hurt the base of your nail, it will be very painful.
Second, what should I do if my nails are cut short and it hurts?
The pain caused by the sensitivity caused by the short nails can be relieved by itself after a period of time, and the sensitivity can be relieved by itself, without special treatment, try to avoid the nails directly touching the object, and wait for the nails to grow out slowly. There is no particularly effective drug that allows nails to grow quickly.
3. Can observing nails tell you about your health?
Physical condition can also affect the shape of the nails, with a spoon-shaped depression in the middle of the nail due to iron deficiency, which is usually more common in women. If the bulge is raised, it is possible to suffer from heart disease or cirrhosis. The more obvious the crescent moon is, the healthier the body, in fact, the crescent has nothing to do with the health of the body, the nails have horizontal lines, and the nails have been suspended due to illness, and then the nails continue to grow so the horizontal lines appear.
Wrinkle-like lines on your nails can be caused by stress, overwork, lack of sleep, and aging due to age.
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Because nails don't have nerve cells, we don't feel pain when we cut our nails, which are just protein derivatives.
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The main reason is that the nervous system plays a role, and if you cut your nails, you can't convey any information, and if you cut the meat, it will hurt a lot.
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Because the flesh is not cut when the nails are cut, the nails are not connected to the flesh, and the nails do not feel pain at all when the nails are cut.
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Introduction: Many people are very strange when cutting their nails, and they don't know why it doesn't hurt to cut their nails.
Some people don't feel pain when they cut their nails, and it's very strange that they don't know why this phenomenon happens. Many people have to see if they are not injured when they are cutting their nails, and if they are not hurt, they will not feel pain. If you don't cut the root of the nail when you cut your nails, you have to have a certain distance, so that there will be no pain when you cut your nails, you must pay attention to protect your body, you must take a look when you choose to cut your nails, don't hurt yourself when you cut your nails, if there is pain, you must go to the hospital for timely **, don't let yourself have this situation, you must protect your body at ordinary times, if your body is very uncomfortable, If you always feel a lot of pain, you must go to the hospital for a check-up in time to see what kind of situation is happening to your body.
If the child often likes to gnaw his nails when he is young, parents should clean the nails regularly for the child, and do not let the child keep his nails too long, so that the child has an uncomfortable situation, and the child will always be very uncomfortable. When parents clean their children's nails, do not let the child move around, in case the child is injured, and choose a good nail when cutting the child's nails, so that the child can cut the nails well. If the child is uncomfortable and has bad fingers, it is also necessary to clean up the child in time.
If you always feel uncomfortable, you must ask your family to cut your nails at this time, so that you can be more comfortable. If it is always difficult to cut your nails, you should also adjust it appropriately, so as not to let yourself experience this situation and do not let yourself feel pain.
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This is because our nails are produced from keratin and do not contain nerves, blood vessels, and cells, so there are no nerve cells so there is no pain when cutting nails.
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Because the composition of the nail is keratin, there are no nerves in the nail, so it will not hurt when you cut the nail.
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This is because the hardness of the nails is very high when you cut your nails, so you don't feel pain.
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Because nails are just proteins, proteins are just substances, not cells, and there are no nerve endings on the nails, so we don't feel pain when we cut our nails.
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Because there are no pain-related nerves on the nails, there is no pain.
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Since there is no nerve attached, the nail is not connected to the human nerve, so there is no pain after cutting.
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Do we all have such a habit of trimming our nails with nail clippers every few days, but we don't feel any pain in the process of cutting our nails, why is this?
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Neither hair nor nails have nerves, and only when nerves are present can they have sensation and perception.
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Human pain is controlled by the nervous system, and there are no nerve cells on our nails, so when we cut our nails, we don't feel pain. In addition, nails are produced from keratin. Keratin is not only the raw material of nails, hair is also produced from keratin, and animal claws and keratin are produced from keratin.
From birth to death, epidermal cells are constantly metabolizing, pushing nails outward whenever new keratin is produced. As a result, nails will continue to grow.
Keratin is not only the raw material of nails, hair is also produced from keratin, and animal claws and keratin are produced from keratin. Therefore, children should trim their nails frequently and keep them clean and hygienic. Don't burn, burn, otherwise, the nails won't grow back.
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The sensation of pain is transmitted to the brain by the nervous system, and there are no nerves on the nails, so it does not hurt.
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Why does it not hurt to cut your nails.
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Because there was no pain nerve connected to the human body, it was not sensitive to pain.
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Because there is no nervous system on the nails, it doesn't hurt no matter how you cut it.
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Because the raised part of the nail does not have a nervous system, it does not hurt to cut it, while the red edge belongs to blood and flesh, so it hurts to cut it.
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There are no nerves in the nails, so you can't feel pain, and it doesn't hurt like cutting your hair.
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The nail is not connected to the nerves and does not transmit pain to the central system.
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Because there are no nerve cells on the nails, there is no sensation.
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There are no nerves on the nails, just a layer of protein.
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There is no nerve induction on the nail, so it doesn't hurt.
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It's because our human body doesn't have pain nerves in our nails and hair.
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There are no nerves in the nails, so I definitely don't feel any pain.
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Check your teeth for caries first, and if there are caries, as soon as possible**; If the teeth are intact, you should have dentin hypersensitivity, which is usually caused by the loss of attachment of periodontal tissues (gum recession), which exposes dentin and is therefore very sensitive. >>>More