Marie Antoinette syndrome is a phenomenon in which a person’s hair suddenly turns white (depigmentation). The condition’s name comes from the folk tale of French queen Marie Antoinette, whose hair is said to have suddenly turned white before her execution on October 16, 1793. People often assume that this syndrome is caused by pressure – perhaps this is most evident in the photos of the head of state before and after taking office. Compare President Obama before and after taking office, retiring. However, because the specific mechanism of graying hair has not been elucidated, it is not clear that 3 factors of aging, genetic factors and stress will affect gray hair to what extent. Recently, researchers from Harvard University published a study in the journal Nature that identified the mechanism by which rat hair turns gray prematurely under stress. The average human scalp has 100,000 hair follicles, and humans also have many different hair colors. Hair color is determined by melanocytes, which produce melanin that absorb light in various combinations. Melanocytes are derived from melanocytes (MeSC), located in the protruding part of the hair follicle. The hair growth cycle is divided into three phases, namely the anagen growth phase, the catagen resting phase, and the telogen long metabolic (shedding) phase. Hair growth cycle: growth phase, resting phase and shedding phase (from left to right). Melanocytes are produced during the growth phase. As a person ages, the melanin stem cells will gradually deplete, and the pigment produced will have a “salt-and-pepper” color, then turn gray, and finally white – the pigment is completely lost. in all hair follicles. At first, researchers suspected that stress would trigger an immune attack on melanin stem cells. But this was later proven to be a false hypothesis, as the mice lacked immune cells but remained mutated and had white spots. Stress increases the secretion of the hormone cortisol, so researchers are beginning to suspect that the hormone cortisol is responsible for the hair color change. However, when the cortisol-producing glands were removed in the mice, the mice’s fur would still turn white. Finally, the scientists focused on the sympathetic nervous system, the system in the body that is used to control the stress response in dangerous situations. Through studies, scientists discovered that melanocytes are located in the bulging part of the hair follicle, surrounded by neurons of the sympathetic nervous system, and release a neurotransmitter molecule. nerve is called norepinephrine. Melanin stem cell activity under normal and stressful conditions. As can be seen in figure a, under normal conditions, melanin stem cells (MeSCs) migrated from the bulge (in the direction of the red arrow) and differentiated into melanocytes during the analysis. From there, melanocytes synthesize pigment to make the regenerated hair dark. During the degenerative and resting phase, these stem cells begin to die. However, in the next growth phase, there will still be a large amount of new MeSC used to replace the dead stem cells. In figure b, the researchers found that external pressure stimulates and activates the sympathetic nervous system, increasing adrenaline release in the hair follicles. Norepinephrine then causes the MeSCs to completely transform into melanocytes, and none of the stem cells survive the growth phase in the next cycle. Since no new melanocytes are produced, the hair is naturally greyish white. The researchers also tested the effects of different pressures on the fading of the mice’s fur. At different stages of hair growth, they exposed the mice to three different stressors – pain, limited mobility, and psychological stress. All three of these factors induce MeSC depletion, which eventually leads to the appearance of white hairs. Previous popular theories believed that stress-induced hormonal changes (such as corticosterone) or autoimmune reactions were responsible for graying hair. The researchers examined these underlying mechanisms, first by blocking corticosterone signaling, and then by stressing the mice’s immune systems. In either case, corticosterone changes or autoimmune responses did not induce MeSC depletion. However, the researchers found that the expression of MeSCs depends on an adrenaline receptor, which responds to adrenaline. The adrenal glands are the main source of adrenaline. But surprisingly, the researchers found that removing these glands still did not prevent the mice’s coat color from turning gray under stress. Another source of adrenaline is the sympathetic nervous system (SNS), which is active in response to stress. The researchers demonstrated that the bulge area is internally connected by sympathetic neurons. Using neurotoxin molecules to destroy the SNS or prevent sympathetic neurons from releasing adrenaline could prevent hair from turning gray due to stress. Next, the researchers studied mice with activated sympathetic neurons and found that over-activating the SNS in these mice could cause hair to turn gray without stress. Taken together, these results indicate that adrenaline released from activated sympathetic neurons induces MeSC depletion. The red shows the melanin stem cells at the bottom of the hair follicles and the sympathetic nerves are shown in green around them. Therefore, the culprit behind Marie Antoinette Syndrome is adrenaline, but our problem is not over yet. Stress produces adrenaline which turns our hair gray, so can a silvery bangs help relieve stress? The team from Harvard University, led by Xu Yajie, believes that hair-whitening is actually a side effect of sympathetic nervous system stress processing: “For species like octopuses and geckos flowers have the ability to change color rapidly, the pigment cells in their body will be activated under the influence of the nervous system, but in today’s mammals, only melanocytes remain. very sensitive to the hormones secreted by the nervous system. Once the hormone is secreted in excess, these cells are inadvertently activated.” Gray hair color is not life-threatening, so in the process of evolution, this small defect has remained. In fact, in the face of stress, hair doesn’t actually turn completely white overnight, which is a slow process and lasts for several months. In addition to being associated with stress and age, gray hair can sometimes be related to experience, leadership, and trust. For example, when a male silverback mountain gorilla is fully grown, it will grow gray hair on its back and become the leader of the gorillas. After being subjected to enough pressure, individuals that are “dyed” white often have a higher status in the community than their age.

As one of the leading beauty icons of Vbiz, Mai Phuong Thuy is also favored by fans as the big sister of the Miss village. The coronation has been more than 14 years, but the beauty of Miss Vietnam has not changed, she is even more beautiful and salty over the years. Therefore, she is always the center of attention when appearing with a superior appearance. Mai Phuong Thuy again received negative comments, saying that she touched cutlery, fixed her nose, made porcelain teeth, braces … Recently, Miss Hau officially spoke out when she was told that it was fake braces, she shared: “It’s too bad that I can replace broken teeth, but I have never had braces, braces but also slouch?”. Since the coronation, Miss Hau has had crooked teeth. She wanted to keep the charm of her teeth, so she did not change, only replacing teeth when broken. Those teeth have always accompanied Thuy to the present time. It can be said that Mai Phuong Thuy is one of the rare queens who do not follow the fashion of porcelain teeth or braces. Graceful crooked teeth followed her from the time she was a schoolgirl, to the time she was crowned Miss and until now, it has remained unchanged. She said that there are times when a tooth is broken and a new tooth is replaced, because when making porcelain teeth, it will be very painful plus removing the pulp like a tree branch is uprooted, the teeth will be weak and not durable, so she do not choose the method of making porcelain teeth. About braces, this is a pretty useful beauty method, but it is suitable for those who have too much or too little teeth. Because braces will change the jaw muscles a lot, this is a suitable measure for puberty until about 23 years old, to achieve the optimal effect. Mai Phuong Thuy is always proud of her bright smile and crooked teeth. She is always praised for having a smile as bright as a flower. It can be said that not making porcelain teeth helps Mai Phuong Thuy to retain her inherent beauty from the past to the present. To help you distinguish between porcelain teeth and naturally beautiful teeth with the naked eye, there are 5 identification bullet points for your reference and from there it is easier to distinguish: – Porcelain teeth usually have a brighter whiteness than real teeth, but the white color of porcelain will be a bit dazzling and not as natural as real teeth with good enamel. – Porcelain teeth are prone to blackening, which is something that real teeth rarely have. Because natural and artificial teeth are different, this is the easiest way to distinguish them when seen with the naked eye. If you can’t stand it, your gums will initially darken and darken over the years. Something that real teeth rarely do. – Porcelain tooth gaps are often tight and even like corn kernels, while real teeth have a slight gap, these gaps will be uneven and the tooth configuration is also uneven. – Porcelain teeth after making, if you do not clean carefully, will easily cause unpleasant odors that make you lose confidence even though you have a bright white teeth.

Activated carbon One of the easiest and most economical ways to whiten teeth at home is to use activated charcoal. You just need to crush a piece of charcoal into a powder or buy a commercially available activated charcoal powder, then wet the brush, dip it in the charcoal powder and brush your teeth as usual. After a few uses, you will feel the whiteness of your teeth. Illustration. Milk powder and toothpaste If you have milk powder at home, try this unique ingredient to whiten teeth right away. Take the toothpaste on the brush as usual, then sprinkle powdered milk on top and start brushing. Do 1-2 times a week for best results. Illustration. Gargle with oil Oil pulling is a traditional Indian folk method for improving oral hygiene and removing toxins from the body. Illustration. You can use any natural oil like sesame oil, sunflower oil… Coconut oil is a popular choice because it has a pleasant taste and is high in lauric acid, which has the ability to reduce inflammation and digestion. kill bacteria, bring many health benefits. Put a spoonful of oil in your mouth and gargle gently for 15-20 minutes to remove bacteria, plaque and gingivitis, thereby preventing your teeth from being discolored by bacteria. Brush your teeth with baking soda Baking soda or baking soda is a common ingredient in commercially available toothpastes due to its natural whitening properties. Many studies also show that toothpaste containing baking soda is significantly more effective in removing yellow stains and plaque on teeth than regular toothpaste. Illustration. Baking soda is a mild abrasive that helps remove surface stains from teeth; It also creates an alkaline environment in your mouth, preventing bacteria from growing. You can either mix 1 teaspoon of baking soda with 2 teaspoons of water or use a toothbrush and dip it in baking soda. Both of these methods work well if you use them regularly 2-3 times a week. Brush your teeth with lemon juice You can combine lemon juice with baking soda or baking powder. Take a pinch of baking soda on a toothbrush and add a few drops of lemon juice on top to brush your teeth. Because of the strong bleaching properties of baking soda and lemon, you can only do this up to once a week to get shiny teeth. Illustration. Mix baking powder with lemon juice in a ratio of 1:1 and brush your teeth 1-2 times a week, each time for no more than 2 minutes to help whiten your teeth. Sea salt, lemon juice and toothpaste Once a week, you can take a little lemon juice, a pinch of sea salt and mix it with toothpaste. Apply this mixture on your teeth and let it sit for 1 minute, then rinse your mouth with water. This method will help the enamel gradually lighten without causing sensitivity. Illustration. Apple Cider Vinegar and Water Apple cider vinegar mixed with water can be used to gargle daily in the morning. Not only does it brighten teeth, but it also helps freshen breath. Mix 1-2 tablespoons of apple cider vinegar with 1 cup of water, use this mixture regularly to gargle every morning to achieve the highest effect. Illustration.

The process of making glass blowing through many stages. The first is the selection of raw materials, the glass fragments must ensure no stains and be classified according to different blue and white colors. The broken or worn glass pieces are then recycled by furnace and heated in a molten state. Glass can be machined in many ways such as blowing, pressing, pulling, rolling … but the popular machining method that has been applied for hundreds of years is still “blowing”. You must first “whip” molten glass into the end of a long iron tube, then put your mouth on the other end of the tube and blow. In this way, the glass at the other end bulges out. While blowing, the worker must shape and make the product of the appropriate thickness. In the glass forming steps, the blowing technique is the most important, the craftsman said. The worker must regulate his breath so that it is rhythmic and suitable for each product. Therefore, in addition to their health, skilled craftsmen also have to have breath-holding tricks to fit the desired shape. As the oldest person still working as a glassblower in Giap Long village (Thong Nhat commune), Mr. Ho Van Ginger shared: “With the naked eye, the worker has to estimate the maturity of glass to start blowing. At this time, the operation must be fast and continuous, without a break even for a second, because the glass out of the fire quickly cools, if stopped, it will be distorted immediately. ” According to him, in addition to perseverance, the blower needs to be careful when constantly exposed to fire above 1,200 degrees C, not only that, it also needs meticulousness and creativity to just skillfully adjust the breath. slightly, hands are rhythmic to create straight, patterned curves. Each glass factory has its own know-how in the brewing process. The appropriate incubation time and temperature for each product will determine the brightness and durability of the product. Finished product after the oven meets the requirements with transparent white, sharp and delicate lines. With the designs that require a lot of quantity, the finished product must reach the correct rate, all “hundred as one”. The process of making glass products consists of many stages that require meticulousness and ingenuity of the craftsman. Photo: Diem Quynh The first and most popular blown glass product was Philatop syringe, followed by other products such as oil bulb, thermos cap, drinking cup, seedlings. In the beginning, when there were no sources of raw materials, electricity and motors, the craftsman created and utilized other materials and craft tools to the glassblowing profession. Used fluorescent bulbs are used to take advantage of, wash off the lime inside and melt to blow. The forge furnace is used as a glass blowing bell, the gas pedal is below, the upper uses 6 wicks rolled together, continuously pumped kerosene to burn the fire up to a thousand degrees. The worker uses two concrete pieces to close the fire to a slot, the stronger the wind pedal, the bigger the fire, the heat is used for different types of glass such as alkaline, neutral, and resistant glass. high heat. When the glass was first put in the fire, it will turn green and burn to the point where it will turn white. The main glass products of the craft village today are test tubes, bulbs, bottles. Photo: Diem Quynh During the blowing process, workers must focus on observing when the glass is ripe and blowing, rotating hands to shape, in addition, it is necessary to twist, pull, and weld techniques. Different weak blow strength results in different products as well as the thickness of the glass. After finishing blowing, to avoid sudden shrinkage or breakage when storing boiling water (for glasses), it is necessary to incubate it for a few hours. After that, all products are covered with newspaper and carefully lined with straw so that the product is not broken or broken. In addition to household products, Thong Nhat craftsmen also blow shapes of animals such as deer, ba ba, fish, pine trees, 12 zodiacs, wind chimes … very sophisticated. At a time when the craft was developed, the animals were filled with colored water inside, which was favored by the market. At present, Giap Long, Hoang Xa and Thuong Giap villages of Thong Nhat commune still retain their jobs. However, each village has only a few households following the industrial way. In the years 1980 – 1990, glassblowing was an important job of the commune, making a mark with the famous Thong Nhat Glass Cooperative near and far.

Illustration. Beauty experts have discovered that losing weight with lemons is not the only use! Lemon juice is considered as a skin whitening tool for thousands of years. Lemon contains acids that help gently nourish the skin and naturally exfoliate (the cell layer that makes the skin darker). Note that lemon juice can be irritating to the skin. In particular, women with sensitive skin are prone to redness, itching or burning when using unrefined lemon juice. To avoid this, you can mix a little warm water with lemon juice. Then rub and massage on body for about 15 minutes and shower with water. Note: This method of skin care should be used at night, avoiding the skin exposed to the sun. Because for women with too sensitive skin, sun exposure can burn the skin or cause inflammation. If on the street, use sunscreen. Only do this from 2-3 times / week. Applying it regularly will irritate the skin, leaving it worn out and prone to sun exposure. Lemons are known to dry out the skin, so use a body moisturizer to hydrate the skin. Lemon juice cannot speed up your skin whitening. So do it continuously 3-4 times / week and persevere to see the effect. The fastest way to whiten facial skin at home from yogurt Yogurt is considered as the fastest natural skin whitening at home for women because it contains a large amount of nutrients, especially lactic acid as a natural bleach that improves dull skin that is very safe. Safe, non-irritating, suitable for all skin types. How to: Just gently rub yogurt on your face, leave for 3-5 minutes, then rinse with warm water. Do it 1 time / 1 day, you will see the brightness of the skin change from day to day. Or you can mix 1 teaspoon of yogurt with 1/2 teaspoon of honey and apply this mixture on your skin, wait 10-15 minutes, then rinse your face with water. Remember that it must be done every day, you will find this simple at-home whitening method to be effective after 3-4 weeks. Beer and lemon juice Beer contains a rich amount of vitamin B and has high antibacterial properties, especially when combined with the acidity in lemons, will help your skin turn white quickly, while preventing the risk of acne. fish effectively. This facial treatment you should only apply twice a week for the best results. Preparation: 3 teaspoons of beer with 1 teaspoon of lemon juice for this beauty treatment. Method is also very simple. After cleansing your skin with warm water, apply a mixture of beer and lemon juice to your face, to help your skin absorb nutrients better, you combine gentle massage. After 20 minutes, rinse with clean water to feel the smoothness right on the skin.

Products made from moau are both beautiful, unique and environmentally friendly, so they are very popular in foreign markets. Photo: Nguyen Ngoc Earn hundreds of million dong per month from moau. Quang Ngai is famous for growing areca, areca fruit is considered a stable source of income for people. As for moau, which has only been burned or thrown away, now it has added new uses: Becoming input material to produce dishes, dishes, spoons … These days, Nguyen Van Tuyen (38 years old) and his friends at Dong Dinh industrial cluster (Nghia Hanh district, Quang Ngai province) are operating at full capacity. Within the past month, his facility has completed an order for 50,000 dishes, dishes, and rice trays for partners in Korea. Each piece is purchased for 1,000 VND to help growers have more income. Photo: Nguyen Ngoc The trailers after purchasing from the people are washed before being put into production. Photo: Nguyen Ngoc To have the success today, Mr. Tuyen and his friends have had to put in a lot of effort. As a native of Phu Yen, during a business trip in Quang Ngai, he noticed that this land planted a lot of areca. Normally, the burnt by people is very wasteful and not good for the environment. Through researching and seeing countries in the world creating products from moau, in Vietnam, I have not seen much so I decided to try it. By September 2019, Mr. Tuyen and his friends decided to invest in a production line for cups and plates from moau. Heat presses are used to create molds. Photo: Nguyen Ngoc Each production machine has 5 molds to create 5 samples of different sizes and dishes with a capacity of 200 products / machine / day. Photo: Nguyen Ngoc “In the past, all of the areca trees fell in the garden, people burned or left, now they collect them and sell them to themselves. Each piece is purchased for 1,000 VND, helping the gardeners have more income, contributing to environmental protection and reduce waste “, Mr. Tuyen shared. In addition to generating income for areca growers, Tuyen’s facility also creates jobs for 6-10 workers with an income of 5-8 million VND per month. “The operation of the machine is quite simple, the job is quite light, but it brings quite a high income. The income per person is from 5 to 10 million VND per month. This income is much higher than farming or working as a job. the number of other jobs, “said Ms. Phan Thi Kieu, a long-time employee of a trailer production establishment. Products have formed. Photo: Nguyen Ngoc After passing the heat press, the products are exposed to UV sterilization. Photo: Nguyen Ngoc Mr. Huynh Luu Tin – production manager shares, after buying, you must ensure whiteness, no mold. In the production process, the raw materials will be washed and dried, then put into the high-temperature press to create products such as cups, plates, spoons, rice trays … Mold shaped products with temperature From 80 degrees C to 120 degrees C, the trailer is pressed for 40 seconds to shape and dry. “The temperature is too high or too long will burn the product. After pressing the finished product, it will be disinfected by UV projector and then packed and sent for testing according to regulations before exporting. This is the product. environmental protection products, quite unique, so foreign markets are very popular “, Mr. Tin said, adding that the establishment’s revenue reached over 100 million per month and is continuing to increase. Products are made from trailers. Photo: Nguyen Ngoc Currently, the facility has 5 presses, each with 5 molds with a capacity of 200 products / machine / day. Depending on customer requirements, the facility produces different types of injection molds. The price of each product ranges from 1,000 – 6,000 VND. Packaged products are exported to foreign markets. Photo: Nguyen Ngoc Mr. Pham Quoc Vuong, Head of the Economic and Infrastructure Division of Nghia Hanh District, Quang Ngai Province, said that Nguyen Van Tuyen’s production base of dishes and food containers is a new and promising direction. . Highly rated products, which can replace plastic items or made from less environmentally friendly materials. “In the coming time, the locality will create conditions for this facility to develop different types of products, develop production, and create more jobs for workers,” said Mr. Vuong.