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"Long white hair is a symbol of blessing, long white hair should not be easily pulled out, just keep it!" Uncle Li in the pile of old people in the lakeside park said in the early morning.
"Is that really the case? Then I have to tell my wife, don't pull out the white hair, what are you doing with this effort? It's still hurting again..."
"The words of online experts cannot be believed! My daughter said that online experts are all deceitful and unreliable! ”
Everyone in the park and lake has their own words, and there is a lot of discussion about "can the white hair be pulled out", so which statement is correct?
Is what Uncle Li said true? Can gray hair really fight cancer? Is it reliable for Harvard scholars to propose such a scientific basis? Does it have any effect if I pull out my gray hair? Let's answer them one by one.
People reach middle age, raising children to grow up with their own increasingly obvious white hair, and even some friends have not yet reached middle age has grown a handful of gray hair, but recently there is white hair can fight cancer, can not be pulled out of the saying, we want to find out whether white hair can really fight cancer, in the end can not be easily pulled out, we should find out why white hair grows...
First of all, whether it is old and middle-aged, or even a small number of teenagers, there will be white hair, so what is the cause of white hair? Is it true that people grow white hair when they are old?
Is long white hair really a manifestation of the body's anti-cancer response?
Foreign researchers have done experiments and found that when the number of stem cells in animal hair follicles decreases, hair turns white. When animals are exposed to DNA-damaging radiation and chemicals, damaged stem cells are permanently transformed into melanocytes. The loss of stem cells also reduced the number of melanocytes in the mice, which turned the animals' hair white.
Among them, David Fisher, a professor at Harvard Medical School in the United States, has also pointed out that the graying of human hair may help prevent cancer because it is related to DNA damage, which limits stem cell division and reduces the chance of stem cell mutation. In addition, in the process of white hair growth or the original black hair turning black, the body's self-regulation mechanism can also remove various human cells with dangerous properties that have become cancerous to varying degrees to a certain extent.
So, can gray hair really help our body fight cancer?
Here we first press the table, for the aforementioned American Harvard scientists made experiments, the editor here to say, there is a point worth our attention, that is, the so-called mice experiment is only carried out on mice, the conclusions it draws can not be very direct, arbitrarily extrapolated to humans, so it can be seen that although the experiment from the American science laboratory is scientific, the results it draws cannot withstand our repeated scrutiny. In fact, we might as well think about it from this perspective, if people with gray hair have a smaller risk of developing cancerous symptoms, then why are cancer patients often dominated by the elderly? If we think about it this way, it is not difficult to find that the results obtained by the Harvard Science Laboratory in the United States are obviously inconsistent with our reality.
In addition, it is worth mentioning that according to the data released by the China Cancer Center last year, we can know that men aged 60 to 64 and women aged 50 to 54 have the most cases of malignant tumors, while men aged 60 to 64 and women aged 75 to 79 years die of malignant tumors the most.
In summary, the growth of white hair is not directly or necessarily related to the formation and anti-cancer. However, although white hair does not have an anti-cancer effect, we still do not recommend blindly removing gray hair in daily life.
INTERVIEWER What is the reason for long white hair?
1. Is my hair gray, is it old for me?
This sentence should probably be said to be only half true. The most important reason for graying hair and growing new gray hair is, of course, the aging of people. With the increase of age, the number of pigment cells in the human body is not only decreasing, but also gradually declining, so that the enzyme activity involved in the formation of melanin will gradually decline, eventually reducing melanin production, resulting in the production of white hair. But there are many other reasons...
2. Lack of minerals and various vitamins in the body
Some people have white hair, which is likely to be a lack of certain nutrients in the body, which is reflected and shown by the growth of white hair. Here, it is worth mentioning that we all know that the human body needs a certain amount of vitamins or other nutrients every day, vitamins and minerals as two essential substances to maintain the normal operation of our body, is an important influencing factor for the growth of gray hair. When the body lacks vitamin B12, zinc, selenium, iron and other related components, even if we are not aging, it is possible to grow white hair.
3. Congenital heredity
There is a clear genetic predisposition to gray hair, mainly caused by the autosomes that control our genetic shape. If this is the case, it is difficult to change easily, after all, strong genes are innate, and this point is difficult to change and shake easily through a series of measures we have acquired.
4. The sun is too long and too intense
We will like to bask in the sun in winter, enjoy sunbathing, because as we all know, the ultraviolet rays produced by the sun have all kinds of benefits for our human body, however, the ultraviolet rays produced by the sun are good, but anything, whether good or bad, is too much, if we in order to enhance the exposure of ultraviolet rays to our body, resulting in excessive exposure, then this excessive exposure to ultraviolet rays will also lead to damage to melanocytes in our human body. This leads to oxidation and damage to the hair follicles under the surface of our skin. Therefore, if our gray hair grows too fast or too much, we can pay attention to whether we have been exposed to ultraviolet rays for a long time or at high intensity during that time.
5. Some diseases
As a human being, if you suffer from diseases similar to vitiligo, or atherosclerosis, skin atrophy, endocrine and other related diseases, or human thyroid function decline, etc., it may also cause the human body to grow white hair, which cannot be ignored, which is also one of the important reasons for the growth of white hair.
6. High psychological pressure
As we all know, psychological depression will bring a variety of psychological diseases, the aggravation of psychological diseases will lead to the aggravation of psychological pressure, the formation of a vicious circle, long white hair is also very relevant to this statement, a person long-term tension, anxiety and other bad emotions, will lead to endocrine system disorders, insufficient blood supply to the head, and will increase follicle oxidative stress, so that melanocytes die faster.
However, as Uncle Li said at the beginning of the article, long white hair is a "blessing", and the body is fighting cancer, is there a scientific basis for this statement?
- Why is it not recommended to pull out gray hair?
When we were young, we used to hear the saying "white hair can't be pulled out, pluck one long ten", in fact this worry is superfluous, this statement is completely nonsense. The number of animal hair, including humans, depends on the number of hair follicles, the number of hair follicles on our scalp is fixed, as is the number of hair that grows, and it does not grow more because of plucking white hair.
However, it is worth noting that pulling out white hair is very easy to damage hair follicles, and it is likely to form inflammation of hair follicles. Once our body has symptoms of folliculitis, it often leads to other hair in the body being affected, and may even cause hair loss.
However, it is not only the elderly who will grow white hair, for some young people, the appearance of white hair on the head affects their own image, how to improve white hair if they cannot be pulled out?
INTERVIEWER How can we reduce the growth of gray hair?
1. Supplement all kinds of nutrients to ensure balanced nutrition
In terms of diet, we should pay attention to the intake of foods containing various vitamins, minerals and niacin, and can properly cook animal liver, eggs, kelp, shrimp and crab foods to eat, while paying attention to a light diet, fried, greasy type of food as much as possible to eat less or not eat.
2. Go to bed early and get up early, exercise frequently
Adequate sleep can keep the body's metabolism and endocrine system stable, exercise can promote the acceleration of metabolism, it is recommended to maintain at least half an hour of exercise every day.
3. Proper hair dyeing and shampooing
Hair dyeing and perming will cause damage to hair, it is recommended to perm and dye hair at least half a year or more, not too often.
4. Massage the scalp appropriately to play a soothing role
Massage the scalp can play a role in relieving pressure and improving blood circulation, massage can be appropriately with the help of some massage tools, such as massage chair or head massager, etc., at the beginning of each massage can be 1~2 minutes, and then gradually increased to 5~10 minutes, pay attention to long-term persistence.
5. Maintain a pleasant and comfortable mood
The phrase "laugh for less than ten years" is actually true, and maintaining a good attitude will help prevent many diseases, including white hair. Therefore, maintaining a happy mood will have a certain effect on inhibiting the growth of gray hair.
In addition to aging, the appearance of gray hair has a lot to do with some bad habits in life, and we must do these things as little as possible to prevent gray hair from appearing. Of course, after the appearance of gray hair, do not be too anxious, we should face life with a positive and optimistic attitude, face gray hair, face this natural physiological phenomenon. However, it is worth noting that if gray hair is accompanied by other physical abnormalities, such as a large loss of weight in a short period of time, loss of appetite, and increasingly thin body, etc., you must go to the hospital in time to ask a professional doctor for treatment
- Conclusion
White hair is a natural metabolism of the body phenomenon, if we or people around us have the phenomenon of growing white hair, do not panic too much, pulling out white hair itself has little to do with cancer and anti-cancer, as long as we pay more attention to the balanced combination of nutrition in daily life, develop a healthy and regular routine and living habits, all kinds of phenomena that bother you will naturally disappear slowly.