Many girls have a habit of staying up late. When you work for a computer all day long, it will lead to dark yellow skin. Sometimes it is useless to use even the best skin care products. We need to develop good skin from the inside out. Let's take a look at how the skin is dark yellow rough.
What are the causes of dark yellow skin?
1. Stays up late and causes insufficient sleep
At night, it is a period of vigorous cell metabolism. It is difficult for the metabolism of the cells to progress smoothly during the day and night. It disrupts the rhythm of the organ's conditioning and causes thickening of the stratum corneum and dark yellow skin.
2. Excessive UV radiation
Ultraviolet rays are the main killer of skin aging. Excessive UV radiation can cause texture chaos, poor blood circulation, and accumulation of melanin. Over time, the skin will turn yellowish.
3. Dry skin
The problem with dry skin is usually the dark yellow skin. On the one hand, lack of moisture in the stratum corneum, naturally it is difficult to make the skin moist and shiny. On the other hand, dry skin will have fine lines, and if it gathers more, it will look like a layer of gray on the face, making the skin look yellowish.
4. Cleaning is not clean
Many babies wear makeup when they leave the house, but if they don't thoroughly remove makeup after they return, dirt will remain on the skin and the skin will be dull and dull.
Dietary conditioning to get skin yellow problem:
1, emollient Hawthorn tea
Hawthorn has excellent health and health effects, can effectively reduce cholesterol, effective lower blood pressure, sedation, diuresis, vasodilation, often drink hawthorn tea can promote ruddy, improve the dark yellow rough face. Prepare five hawthorns, a small amount of honey and pure water, clean the hawthorn, cut into small pieces, cook it together with purified water, cook it, and add a little honey to the seasoning. Drink a small bowl of hawthorn tea every day, and the dark yellow skin color will soon be improved.
2, high vitamin fruit and vegetable juice
In order to improve rough and yellowish skin tone through food supplement, crush can eat some high-vitamin fruits and vegetables. Fruit and vegetables rich in vitamin C and vitamin E can promote skin metabolism, effectively improve skin dullness, and make skin quicker. The white pimple is tender, especially for the yellowish complexion caused by metabolic dysfunction in the body, which has an excellent mitigation effect.
Prepare a tomato, a half cucumber, a half a lemon, and a small amount of honey. Wash the tomato and cut it into small pieces. Use it as a spare. Cucumbers are washed, peeled, cut into small pieces, ready for use, and the lemons are peeled and cut into small pieces. Put all the ingredients together in a juicer for juicing, squeeze it, and add a little honey to season. A glass of high-vitamin juice every day can make your face look more rosy and shiny.
3, tender corn porridge
Corn is a food rich in vitamin E. Vitamin E is an essential nutrient to maintain skin elasticity and brighten skin tone. Crushers can improve yellowish skin tone by eating corn. Eat polenta, both nutritious and digestible, but also effective emollient.
Prepare adequate amount of corn kernels and rice, wash the rice clean, put it in a pot, add the appropriate amount of clean water, add the cleaned corn kernels, and cook together to form a porridge. Crushers can use fresh corn kernels to cook porridge, while ground corn paste does not contain high levels of vitamin E in fresh corn kernels. A bowl of corn porridge a day, you can gradually eat a smooth and delicate skin, and fully improve the dark yellow rough skin.
Urine analyzer is an automated instrument for determining certain chemical components in urine. It is an important tool for automated urine inspection in medical laboratories. This instrument has the advantages of simple and fast operation. However, improper use of urine analyzers and many intermediate links and influencing factors directly affect the accuracy of automated analysis results, which will not only cause errors in experimental results, but even delay diagnosis. Therefore, operators are required to understand the principles, performance and precautions of automated instruments. And the knowledge of influencing factors and other aspects are fully understood, and the correct use of automated instruments can make the results obtained by the urine analyzer more reliable and accurate.
application
In the 1950s, a single dry chemical test strip method was used to measure protein and glucose in urine, and the changes in the color of the test strip were observed with the naked eye and compared with the standard plate to obtain the corresponding values. In the 1980s, due to the high development and widespread use of computer technology, automated urine analyzers also developed rapidly, gradually developing from semi-automatic to fully-automated. Urine analyzers are often divided into two categories according to the test items: â‘ 8-11 screening combined urine test strips mainly used for newly diagnosed patients and health examinations. The eight test items included protein, glucose, PH, ketone bodies, bilirubin, urobilinogen, red blood cells (occult blood) and nitrite; in addition to the above eight tests, urine leukocyte test was added to the nine test items. On the basis of 9 of the 10 urine analyzer testing items, the urine specific density test was added. 11 testing items have added vitamin C testing. â‘¡It is mainly used for the observation of the curative effect of the diagnosed diseases, such as the combination test strip of PH, protein and occult blood (red blood cells) for kidney disease; the combination test strip of PH, sugar and ketone body for diabetes; the combination of bilirubin and urobilinogen for liver disease test tape.
principle
This type of instrument is generally controlled by a microcomputer, and the color change on the test strip is measured semi-quantitatively by using a spherical integrator to receive dual-wavelength reflected light. There are several reagent pads containing various reagents on the reagent strip, each of which reacts independently with the corresponding components in the urine, and displays different colors. The depth of the color is proportional to a certain component in the urine, and there is another in the reagent strip" Compensation pad", as the urine background color, compensates for the errors caused by colored urine and instrument changes.
Put the reagent strip with urine adsorbed in the colorimetric tank of the instrument, and the various reagent pads that have produced chemical reactions on the reagent strip are illuminated by the light source, and the reflected light is received by the spherical analyzer, and the photocell of the spherical analyzer is reflected. Irradiate with dual-wavelength light (measurement light passing through the filter and a reference light), and the selection of each wavelength is determined by the detection item.
The instrument automatically calculates the reflectance according to the following formula, and then compares it with the standard curve, and automatically finds and prints the corresponding results of various components. If the content of a certain component in the urine is high, the reflected light of the corresponding reagent pad is dark, otherwise it is strong.
Reflectance fraction: R(%)=Tm.Cs/TsCm×100%
In the formula, R(%) is the reflectivity; Tm is the reflection intensity of the reagent pad to the measurement wavelength; Ts is the reflection intensity of the reagent pad to the reference wavelength; Cm is the reflection intensity of the calibration pad to the measurement defect length; Cs is the calibration pair. Reflection intensity at the reference wavelength.
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