As we get older, I believe that many people will find that white hair begins to grow on their heads, and some people will do everything possible to “turn back to black”. A Taiwanese dermatologist pointed out that graying of hair usually begins to appear around the age of 30 to 40, which varies from person to person; at the same time, it can also be formed due to other reasons, such as stress and obesity. He also pointed out that if you want to darken your hair, in addition to dyeing your hair, as long as the melanocytes and stem cells of the hair follicles have not died, it can actually be achieved through daily maintenance.
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8 reasons for the formation of gray hair
Zeng Yiteng, the attending physician of Taiwan Beauty Xinyi Dermatology Clinic, told the health information website “Now healthy” said that graying of hair is due to the degeneration and reduction of melanocytes and stem cells in the hair follicle, and genetics is also the most important factor. Gray hair usually begins to appear at the age of about 30 to 40 years old; however, the actual situation varies from person to person. Some people are genetically influenced to appear before the age of 20.
Zeng Yiteng also pointed out that there are 8 main reasons for the formation of white hair:
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He added that the above reasons are all factors that can easily cause the body to generate free radicals. Therefore, if you feel that you are still young but have noticed a significant increase in gray hair, you should check whether you have the above problems and regard it as a health problem. remind.
I believe that many people have heard the allusion of “Wu Zixu crossed the Zhaoguan Pass, and his head turned white all night.” The doctor admitted frankly that it is basically impossible from a physiological point of view to have gray hair overnight due to mental exhaustion. He explained that gray hair must occur gradually, unless special agents are used to dye or decolorize black hair overnight. However, if the so-called “overnight gray hair” occurs, the doctor said that it is more likely to be more reasonable. Alopecia areata in a wide range, the patient has both white hair and black hair, but because the lymphocytes that cause alopecia are more likely to attack the black hair cells, almost all the black hair falls out overnight, leaving only the head in disguise White hair, resulting in the illusion of “white hair overnight”, patients should pay attention to the cause of their baldness.
Doctor: Hair should be dyed at least 3 to 6 months apart
When it comes to dyeing hair, this is also the way most citizens often choose to improve their gray hair. However, I believe everyone has heard that dyeing hair can damage the skin, hair, and even internal organs and kidneys. In this regard, Zeng Yiteng said frankly:
“Dyeing your hair is actually not necessary. If you can accept it, it’s better to avoid dyeing your hair as much as possible. If you want to dye your hair, it is recommended to wait at least 3 to 6 months.”
He explained that hair dyes will indeed cause a certain degree of damage to the hair shaft and scalp, because they contain PPD (p-phenylenediamine) or other derivatives, which are common contact allergens, so it is easy to cause allergic contact Dermatitis. In general, the longer the effect or the darker the color, the more PPD may be present and the greater the damage.
However, Zeng Yiteng said that there is currently no definite medical evidence on whether hair dyeing will harm the kidneys and other organs, and the hair dye needs to penetrate the scalp and enter the blood circulation to be enough to damage the internal organs; although some studies have pointed out that dyeing The agent can be absorbed by the scalp, but only in small amounts, and whether it is sufficient to cause organ damage remains to be studied. In addition, it has also been pointed out that hair dyes can cause cancer. Similarly, there is no clear conclusion on this point. Although previous studies have suggested that it is related to cancer, follow-up studies have not found the relationship between the two.
8 daily habits for maintaining your hair
If you want to maintain your hair and prevent the formation of gray hair, Zeng Yiteng pointed out that as long as the melanocytes and stem cells in the hair follicles have not died, you can still restore your hair color through daily maintenance. He recommends that you use the following 8 daily habits to maintain your hair:
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Written by: Guo Zifeng