Disappearing messages on WhatsApp finally launched; know how to use

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Disappearing messages on WhatsApp: After weeks of testing, WhatsApp finally launched on 5th Nov the long-awaited feature of Disappearing messages. Now you can send self-destructive messages and media that disappear after a week.

The new feature is similar to that of secret Facebook Messenger conversations , but a little more restricted. You need to activate it manually. When connected, it applies to all new messages exchanged between you and a contact until the option is turned off.

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Google page ranking : New website 3 ranking update for extreme success

Google page ranking

Google announces that there will be new criteria for page ranking.

Google page ranking

Google has announced that it will change the way algorithms classify websites . This update will not be available until 2021. Google provides various means of measuring the experience of a page, which will allow the web developer to prepare now for the new update from Google.

What is the page experience?

According to the web giant, page experience is supposed to measure how users perceive the experience of interacting with a web page. In order to determine the experience of a page, Google will take into account the “Core Web Vitals. The latter measures the user experience and gives notes on certain aspects of the pages.

This is a project that is scheduled for 2021 at the earliest . Google does not expect developers to rush to make changes to their sites. Because it will take another few months before these new updates are actually deployed.

The page rankings will therefore be made in several aspects. In particular, compatibility with mobile phones, the presence of intrusive announcements, interactivity and speed of loading. However, quality content will still be an asset.

On the other hand, Google said, “While all elements of the page experience are important, we will Google page ranking : new website ranking update the pages with the best information overall, even if some aspects of the page experience are inferior. A good experience of the page does not affect the quality and relevance of the content. However, in cases where multiple pages have similar content, the page experience becomes much more important for visibility in the search .

Page ranking measures – Google page ranking

Google already offers a few tools to achieve this and will update them with more features.

Largest Contentful Paint (LCP): measures loading performance.

First Input Delay (FID): measures interactivity.

Cumulative Layout Shift (CLS): measures visual stability.

Google page ranking

However, according to Google, a poor score on these measures will not necessarily lower the Google page ranking : new website ranking update. On the contrary, these are just additional signals for the algorithm. There is no way to know if these new signals will make a significant difference in the rankings before Google begins to implement them.

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Super moon or Pink moon, you can watch the super moon naked eye

Super moon or Pink moon

The full moon from April 7 to 8 is the largest “Super moon or Pink moon” of the full moon seen this year.

Due to the elliptical orbit of the moon, the distance between the moon and the Earth varies between about 360,000 km and 400,000 km. If the timing of the closest approach and the timing of the full moon are close, the moon looks large. In the case of this year, the moon will approach the earth to about 357,000 km at around 3:09 dawn on the 8th, and it will be a full moon at about 11:35, about eight and a half hours later. In other words, the full moon from “Evening 7th to Dawn 8th” is a super moon.

On the other hand, the smallest full moon this year is October 31. The apparent diameter changes by about 14%, but the size change is hard to see visually. It will be easier to understand if you shoot at the same magnification.

Astro Arts’ concept of “Super moon or BLUE moon” (word usage)

Although the scientific definition is not fixed, AstroArts currently states that the “periphery of the moon (timing at which the moon and the Earth come closest)” and “the moment of the full moon” are within 12 hours (half day) , “The full moon seen before and after that” is referred to as  super moon.” It is not “this is correct” but “we think like this.”

  • The National Astronomical Observatory of Japan does not use the word “super moon” but rather “the largest full moon of the year”. In this case, it happens only once every year regardless of distance and time.
  • United States, the term “full moon within a distance of 360,000 km” or “full moon within a certain distance range based on the perigee distance of the moon” is called “super moon”. In this case, more than one full moon in one year may be a super moon.

Data (by NASA) – Super moon or Pink moon

| Date| distance
Full moon moment| April 08 11:35| 357,030km
The closest approach of the earth center and the moon| April 08 03:09| 356,907km
The closest approach of the moon as seen from Tokyo| April 07 23:23| 351,746km

Distance of the top two is “the center of the earth and the moon center”, is the most under “Earth surface distance of a month-centric”

Pink moon
Super moon or Pink moon, you can watch the super moon naked eye

The closest moment from the full moon (moment) to “moon from Tokyo” is 2:48 on March 10 (350,3082 km) (360,000 from 11:35 on April 8th from Tokyo. 2403km). In this way, the date when the actual full moon (the instantaneous month) is the largest may differ from the Super Moon date.

Full moon for every month have different nameSuper moon or Pink moon

The full moon has various names for each month. In the past, people lived with the phases of the moon, rather than living with the calendar as they do today. This time, I would like to introduce the name of the full moon, which is said to have been used by Native American, which was the source of the American agricultural calendar. You can see that the seasonal change of the full moon has been used as a guide to life such as farming and hunting by turning points.

January: Wolf Moon

In midwinter, the full moon of January was named after the howling of a hungry wolf without food. It seems that Native Americans also used this name in medieval Europe. In addition, it is also called Old Moon (Old Moon) and Ice Moon (Ice Moon).

February: Snow Moon

February in North America has a lot of snow and is named Snow Moon. It is also known as Storm Moon or Hunger Moon. Snowstorms have occurred and snow and cold have shown no food.

March: Worm Moon

Interesting name. The full moon in March, when winter ends and spring begins, is named Worm Moon. When the snow melts, the sun hits the ground and the ground becomes warm, it is like an earthworm coming out of the ground and crawling on the ground. In spring, the emergence of insects from the soil is the same nuance as the “Keiitsu” (written as “surprise emblem” in China) in the 24 seasons used in China and Japan. Shin

Others include Chase and Moon, Chaste Moon, Death Moon, and Crust Moon Ⅽrust Moon. The hard snowy moon is said to mean snow that melts in the daytime light and melts in the snow at night, making the surface harder and harder. It is the scariest pattern when driving on snowy roads. The name of the plant is Sap Moon (sap moon). It’s because it’s time for maple sap to be used as a raw material for maple syrup.

April: Super moon or Blue moon

Northern Native Americans call the full moon in April the Pink Moon. It is said that it is named after a pink flower (phlox) that blooms quickly. It is also called Sprouting Grass Moon, which indicates the time when spring comes and the trees bud all at once. Other names include Egg Moon and Fish Moon.

“The full moon in April brings frost, and when the full moon thins, it rains.” According to another legend, between the full moon and the new moon, it was said to be suitable for tasks such as weeding, mowing, and pruning.

May: Flower Moon

It is called Flower Moon among various countries and ethnic groups. That is the time when so many flowers bloom. Other names include Hair Moon, Hare Moon, Corn Planting Moon, and Corn Moon, and Milk Moon.

June: Strawberry Moon

North America harvests wild strawberries in June. The main varieties bar zinnia in strawberry (Fragaria virginiana), also known as the mountain strawberry or common strawberry. Native to Alaska, Canada and the United States. In Europe, it is named Rose Moon. Also, this month is often the first full moon in summer, and in some areas it is called the Hot Moon.

July: Buck Moon

Buck refers to a stag. The male deer changes horns every year. Native Americans have given this name to the full moon in July, as it was born in July. Another example is the Thunder Moon. This is due to frequent storms in July. It is also known as Hay Moon. This is due to the hay harvest in July.

By the way, do you know what hay is? Often used in stories and animations, it is a dried version of what is called pasture. What kind of grass is that? When I thought and examined it, it was a generic term for several kinds of plants. They seem to plant perennial and perennial grasses such as Orchardgrass (Kamogaya) and Italian ryegrass (Ricegrass) and perennials of legumes such as alfalfa.

August: Sturgeon Moon

The full moon in August was called the Sturgeon Moon, in hopes of a good harvest of the sturgeon caught in the Great Lakes. Green Corn Moon (Blue Corn Moon), Grain Moon (Grain Moon), Red Moon (Red Moon). This seems to have been called because the moon can be reddish in the summer fog.

Super moon or Pink moon

September: Harvest Moon

You may have heard of the Harvest Moon in September. This is the time of harvesting the crop, the full moon after the autumn equinox. When harvesting at night, it also expresses the full moon in September, where the moonlight helps, and the early rise of the moon. There are also names such as Corn Moon and Barley Moon, but are they both harvest months?

October: Hunter’s Moon

It is said to be a good month to hunt fat deer and foxes during the summer. As in September, the moonlight is especially strong and the time to illuminate is long. Hunters can use the power of the moonlight even in the dark to track down prey that cannot be hidden in the dead fields of trees. Other names are Travel Moon Travel Moon and Dying Grass Moon.

November: Beaver Moon

There are various theories, some say that the name came from the time when Native Americans set up traps to catch the beaver, and others said that the beaver started building a nest for wintering, a so-called dam. It is also called Frost Moon, which has the same meaning as November in Japan.

December: Cold Moon

The full moon in December, when a full-fledged winter comes, is named Cold Moon. It is also called Long Night Moon or Oak Moon, which represents the length of the winter night. Oak is a oak tree. It is easy to process and is used for barrels for furniture and whiskey and wine.

How to watch the Super moon or Pink moon in April 2020

The moon rises on April 7 at around 7 p.m. (the time of sunrise may vary by a few minutes, depending on the observation location) in the east and rises in the sky to the south during the night. On April 8, 2020 at 4.35 a.m. it will officially become a full moon – at this time it will be in the sky in the southwest. Shortly after 7 a.m. (here, too, the time can vary slightly depending on the observation location), the moon sets in the west.Super moon or Pink moon

April 2020 Super moon or Blue moon has an impact on Earth

A super moon is not only beautiful to look at, it actually has an impact on the earth: it triggers spring tides . This actually happens about every two weeks – whenever the earth, moon and sun are in a straight line. The spring tide occurs at full moon (earth between sun and moon) and new moon (moon between sun and earth). This effect is intensified if the moon is at the same time in the perigee , i.e. particularly close to the earth.

Super moon or Pink moon
Next Super moon

The moon will reach its distance from the earth in April 2020 on April 20. Then it is 406,460 kilometers from our planet. On average, the moon is at a distance of 382,900 kilometers from the earth.

Next Super moon or Pink moon

The next Super Moon will not have to wait long for the rest: even the full moon in May 2020 counts with a distance of 366,824 kilometers to the super moons. But no matter how close the moon is to Earth : it is always worth taking a quick look at it when it is in the sky. After all, the Earth would not be the same without the Moon – the Moon affects more than just the tides on Earth *.

Even beyond the super moon, you can observe some things in the starry sky in April. The planet “Venus” is particularly striking as the “evening star” . The falling stream of the Lyrids also falls in April. If you own a telescope, you can try to find the comet “Atlas” near the constellations “Big Dipper” and “Giraffe”. There is currently hope that comet “Atlas” will soon be seen with the naked eye .

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How to conceive twins? Types, factors, features details about twins

How to conceive twins

The frequency of twins varies across the world and in history. So the question arrived How to conceive twins? In Niger, one person in 12 is a twin, while in Asia, one speaks of one in 70. Scientists have also observed that the rate of twins decreased between 1900 and 1980 and finally increased again from this moment . These variations of course raise questions. What factors could favor the birth of twins?

Let us first distinguish the real from the false twins. When conceiving real twins, a single sperm fertilizes a single egg. The embryo thus formed then divides into two to generate two babies who share the same genes entirely. On the contrary, for false twins, two separate eggs are fertilized by two different sperm.

Scientists still do not fully understand the mechanisms that favor the birth of real twins. To date, therefore, we have not identified with certainty maternal or environmental factors that could increase their frequency. The situation is however clearer for false twins

How to conceive twins?

To conceive false twins, two eggs have to develop during the same menstrual cycle. Normally, an ovum is created by the maturation of a follicle on the surface of the ovary. It is a hormone called FSH, secreted at the start of the menstrual cycle, that triggers its development. When the follicle gives birth to an egg, it also makes a hormone that blocks the production of FSH.

Under these conditions, a single follicle will succeed in producing an egg. However, if the amount of FSH is too large or if it remains elevated for too long, two eggs may appear. It has also been observed that mothers of false twins have higher levels of FSH.

Three specific factors would really favor the birth of false twins: heredity, the age of the mother and the number of children of the mother before conception.


A twin’s sister would be 95% more likely to conceive of twins. Scientists believe that several genes could be responsible for this familial predisposition. In particular, mutations in the genes necessary for the production of the hormone FSH, serving to block its production or capable of reacting to its presence are the main suspects.

Maternal age:

Between the ages of 15 and 35, the chance of conceiving twins is multiplied by four. Scientists suggest that it would be the number of follicles that would explain this situation. When a woman is young, several follicles would be ready to respond to the FSH signal and therefore quickly block its secretion. However, as the woman ages, the follicles become fewer and react more slowly. FSH is then secreted longer, which would allow two eggs to develop. This is also why the frequency of twins has been increasing since 1980. Although fertility treatments could have a role to play, it would be mainly because mothers now have children at an older age.

The number of children:

The more children a woman has at the time of conception, the greater her chances of having twins. It is also believed that the drop in the rate of twins between 1900 and 1980 could be explained by the disappearance of large families.

Other factors:

Certain factors have been associated with the birth of twins, but they are sometimes controversial. Among others, we find the size of the mother, her body mass index, the season of conception, smoking, the use of hormonal contraceptives and folic acid supplements.

The special case of babies

conceived during breastfeeding Could having a baby while breastfeeding increase the chances of having twins? According to Dr. Steinman, this would be the case . In 2001, he studied mothers attending La Leche League who had become pregnant while breastfeeding. He thus calculated that the percentage of birth of real twins was 3.6% among these mothers whereas in a randomly selected population, we speak rather of 0.4%. For false twins, the frequency was 7.8%, compared to 0.7% in general.According to Dr. Steinman, nursing mothers have lower levels of calcium.

How to conceive twins
How to conceive twins? Types, factors, features details about twins

As calcium is needed to bind cells together, a drop would weaken the strength of the links between the cells of the embryo. It would therefore be more likely that it will split in two to give birth to real twins. In addition, breastfeeding disrupts the secretion of sex hormones. This could lead to overproduction of FSH and promote the conception of false twins.However, this is the only study to link breastfeeding to the conception of twins.

First theory

Contacted on this subject, Dr. Jacques Kadoch, head of the department of reproductive medicine and biology at the University of Montreal Hospital Center, said he was surprised by these data of which he had never before known.This hypothesis must therefore be analyzed in more depth before it can be concluded that breastfeeding increases the chances of conceiving twins.In Quebec, in 2010, births of twins represented 3% of all births .This post was first published on the Maman Éprouvette site .

This article “How to conceive twins?” comes from the blog kcouillard and Quimamme

Monovular or monozygotic twins come from a single fertilized egg divided into two, which gives rise to two different embryos. For this reason  , twins are also called monozygotic or monovular.

It is important to distinguish monozygotic twins from heterozygotic twins . The latter, unlike the monozygotes, are formed directly from different eggs and each of them is fertilized by a different spermatozoon. Twins can also be called bizygotes, dizygotes or biovular.

What is the difference between monozygotic and heterozygous?

First, it is important to clarify that the terms “monozygotic” and “heterozygous” mean very different things:

Monozygotes are those twins that come from the same egg  and, once fertilized by sperm, divide into two, thus giving rise to two different embryos. For this reason, twins are also known as monozygotic or monovular.

The heterozygotes, on the other hand, are formed directly from different eggs  and each of them is fertilized by a different spermatozoon. They are also known by the name of bizygotes, dizygotes or biovulars.

In the case of monozygotes, the genetic information is exactly the same, which is why they are “identical twins”. However, the degree of similarity between them can be the same as in heterozygous twins.

What are the chances of having them?

Twin pregnancies are much more frequent in assisted reproduction treatments because,  to increase the success rate, two or three fertilized eggs are implanted in the uterus . It is likely that none of them will thrive or only one, but if both, or all three, will do, the pregnancy will be multiple.

Even  drugs that induce ovulation increase from the 30-35%  chances  of having twins . In other words, about one in three gestations obtained with assisted reproduction techniques are multiple.

The cases of monozygotic twins,

however, have nothing to do with this type of techniques and drugs since the division of the zygote is caused by a biological “accident”. For this reason, the odds may be the same as for spontaneous pregnancies.

Finally, it should be borne in mind that, if twin pregnancies are rare, trigeminal pregnancies are even more so. The SEF calculates that the percentage is only 0.012%, or one out of 8,100 gestations.

twins baby
monozygotic twins

Even when assisted reproduction treatments are performed or ovulation inducing drugs are administered, the probability is low: one in 700 pregnancies, which corresponds to 0.14%.

Factors related to the birth How to conceive twins

Several studies have linked the following factors to the probability of conceiving twins:

  • Age of the mother . Women over the age of 35 are more likely to have multiple pregnancies since an increase in ovarian follicular stimulation occurs after this age which causes the follicles to generate more eggs. It is a bit paradoxical since, at these ages, the chances of conceiving are lower. An estimated 70% of women over 45 have twins.
  • The weight of the mother . The American Congress of Obstetrics and Gynecology, in a complex study, reported that a body mass index equal to or greater than 30 is a factor that promotes polyiovulation. An increased probability was also found in tall women.
  • The ethnic group of the mother . A scientific study conducted in the United States has shown that black women are more likely to have twins than Caucasian women who, in turn, are more likely than Latinas and Asians.  
  • Genetic inheritance . Having a history of multiple pregnancies in the family increases the odds. It is estimated that 17% of twins also have twins. The inheritance is transmitted both by the father and the mother, but it is obviously expressed only in women because they ovulate.

Types of twin pregnancies – How to conceive twins

First, it is necessary to differentiate a monovular twin pregnancy from a biovular pregnancy and several cases may occur:

  • Bicorial-biamniotic pregnancy : there are two placentas and two amniotic sacs. It is multiple pregnancy with fewer risks and occurs in 30% of cases.
  • Monochorionic-biamnotic pregnancy : there are two separate amniotic pockets, but only one placenta. It is a pregnancy with multiple risks, since fetal-fetal transfusion syndrome can occur, that is, one of the two children absorbs all the “resources”, even those of the other. It occurs in 63% of monozygotic pregnancies.
  • Mono-amniotic pregnancy : occurs when babies share the placenta and amniotic sac. It is the least common case of all and the one with the highest risk.
  • Siamese : they share the placenta, the amniotic bursa and some parts of the body. This phenomenon occurs because cell division took place 13 days after fertilization.

Features of twin pregnancy – How to conceive twins

On average,  the twin pregnancy lasts less than the pregnancy of a single child  since the two fetuses, as they grow, run out of available space more quickly and the placenta can age earlier.

This type of pregnancy  requires the same examinations and tests as a single child’s pregnancy, with some ultrasound scans  more than the usual three of the “single” pregnancy.

In twin pregnancy, the mother’s diet plays a fundamental role. Mom should increase calorie intake by about 300 a day , but in a healthy way:

  • It is necessary to increase the consumption of fruit and vegetables.
  • It is also necessary to increase the intake of proteins, essential for the development of fetuses: white meat, fish (the blue one is ideal for its intake of Omega 3), eggs and legumes.
  • The need for iron also increases, as the mother’s body must use its reserves in order for blood with oxygen to reach the fetuses.
  • Folic acid is also essential, especially in the first three months of pregnancy: spinach and other green leafy vegetables, whole grains and fish rich in omega 3 (salmon, mackerel, sardines, etc.).
  • Calcium is another essential mineral in pregnancy but, even more so, in a multiple pregnancy.

Siamese twins – How to conceive twins

Siamese are twins who have not completely separated in the womb . The binding occurs due to a problem in the development of monozygotic embryonic cells.

Cell division occurs later and the more time passes, the more organs are shared. It is not a genetic defect, but a mutation that occurs during the development of the embryos.

Why are they called Siamese? This term originated in the mid-nineteenth century and became international due to the fame of the case of the brothers Eng Bunker and Chang, born in Siam (Thailand) united by a cartilage between the chest and the abdomen.

What are the causes? Nowadays there is no scientific explanation. The most widespread theory is that of fusion, which causes the late separation of the embryonic plaque, which is why the monozygotic twins who have not separated in the first weeks may be born united in some way.

The cases are very few. Only one birth in 200,000 is Siamese.

What will breastfeeding look like in these cases?

If you have twins, breastfeeding is more complicated, but not impossible . With a little effort, practice and a lot of patience, the result will be positive and of great satisfaction for you and your little ones. We give you some practical tips to serenely breastfeed your twins.

  • During the first weeks of life , babies will require breastfeeding every half hour. It will be a difficult phase because you will have the feeling of not doing anything other than breastfeeding. Gradually, you should get your kids used to taking milk at the same time. How to do it? You should gradually synchronize their rhythms. Whenever the hungrier asks for the breast, you will also give it to the other. In this way, their feeds will be contemporary and will end up being hungry at the same time.
  • Supporting both children at the same time is not easy . With the help of two pillows this task will be easier. You should sit in a comfortable place, place the two cushions on your legs and place the children on them.
    Hold the cushions and babies with both arms, positioned so that the little ones reach the nipple on their own. You can rest your feet on a cushion that allows you to lift your legs and feel more comfortable.
  • If you have twins,  the diet must be richer  from an energy point of view: compared to the basic amount of about 2,000 calories per day, the supplement should vary between 900 and 1,200 more calories.
  • Remember to alternate the breasts  between the babies. Do this every 24 hours, so it will be easier for you.

How to treat identical twins? – How to conceive twins

The bond between the twins  is an indispensable element for their growth. When they are very young, they must be together , as they have shared a very small space for months. Therefore, they must be in the same cradle next to the mother, without separating them, unless there is a medical need.

Remember, however, that such an exclusive and lasting relationship, especially if they are monozygotic twins, can compromise the individuality of the two children. We must therefore avoid certain attitudes that can lead us to consider twins as an inseparable unit.

How to conceive twins
How to treat identical twins?

First of all, we should avoid giving them too similar names and we must turn to them with the “you” and not with the “you” , calling them by their name and avoiding referring to them with the generic term “the twins”. To make them recognizable to others, their initials can be embroidered on their clothes or friends can be informed of a particular characteristic or a garment that distinguishes them.

  • One should avoid considering or commenting on their similarity in their presence, as well as using them to surprise friends and strangers.
  • We must evaluate the character differences of each of the twins, to avoid labeling them with predetermined adjectives: the big or the small, the extrovert or the shy.
  • Different gifts should be chosen, trying to strengthen each individual’s individual tastes.
  • However,  in the effort of diversification and autonomy of children, we must not exclude all possible experiences in common , so as not to break the delicate bond that unites twins and avoid aggravating the anxiety of separation that affects all twins in the early years of life. Occasionally, you have to let them play or dress the same way, as well as do the same things.

And the different twins?

In the case of different twins, the same attitude considerations that we saw in the case of identical twins apply. All twins, brothers born together, in fact tend to be considered a multiple unit, instead of being treated as individuals . 

Curiosity about monozygotic twins – How to conceive twins

“It’s two drops of water!”. The extraordinary similarity between the monozygotic twins always arouses our admiration. But is this similarity the same in all senses? For example: do they smell the same? Do they have the same dreams? Is their immune system identical? To what extent do they look alike? Here are some curiosities about twins.

  • Monozygotic twins also look alike in the immune system . For this reason, in many cases, they get sick in the same way and at the same time. Scientific research has shown that out of nine types of antibodies, twins born from the same egg have seven equal ones, while the average for other children varies from six to four.
  • They have similar dreams : say the twins Giorgio and Nicola Pressburger, writers and directors, who wrote a novel about one of their dreams, “The green elephant”.
  • They smell the same : not even the best police dogs can distinguish the smell of a monozygotic twin from another. Sometimes, fingerprints are the same too.
  • They confirm the theory of chronogenetics : according to this science, our life is regulated by rhythms related to time.
    Luigi Gedda, author of the Mendel Institute for the study of twins, formulated this hypothesis after years of collecting data relating to twins from all over the world. An example is the case of John and Arthur Mowforth, two retired airmen: at the age of 70, they suffered from chest pain on the same day and died just over an hour apart.
  • They have a sort of telepathy : in an experiment conducted at the Language Center in San Diego, California, 14 pairs of identical twins were divided into separate rooms, so that they could not communicate. In 12 out of 14 cases, when a twin was asked to make a gesture, like raising his arm, closing his eyes or yawning, the other also did it.
  • Usually he likes the same names : Tom Bouchard, an American psychologist specialized in the study of twins separated at birth, cites, among the various examples, that of twins Dorothy Lowe and Bridget Harrison, adopted in the first days of life by two different families. When, after years of separation, they met, they discovered that they called their children in a surprisingly similar way. The firstborn had been baptized, Andrew Richard and Richard Andrew, and the second daughters Karen Louise and Catherine Louise, respectively.

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Make hand sanitizer or disinfectant at home yourself: Instructions

Make hand sanitizer or disinfectant

Instructions for Make hand sanitizer or disinfectant to make yourself: How to fight viruses & bacteria naturally

Good against bacteria and viruses

Make hand disinfectant yourself: Instructions

When the flu wave rolls again, washing hands and disinfecting helps

On the train, on the bus, at the bakery – everywhere we come into contact with germs that others have left behind. It is therefore important to wash your hands several times a day. But what to do if there is no way to do it on the way (e.g. in the playground)? Then disinfectants for the hands * 🛒, which are now available from numerous manufacturers, will help . However, you can save the money by doing hand disinfectants yourself. It’s totally simple and you are guaranteed to know what is in the bottle afterwards. Nicely packaged, the germ killer is even suitable as a gift.

DIY instructions for disinfectants

The list of ingredients in an average disinfectant reads like a chemistry doctoral thesis: Propan-2-ol, Propan-1-ol, Mecetroniumetilsulfat … In case you are too scary to rub this mixture on your skin or on your children , you can also mix an agent yourself that kills pathogens. How this works and what you need for it is shown here in our DIY instructions for disinfectants.

It is important, however, that you do not overdo it with the application. Washing hands with soap is always the better alternative – both for your skin and for your immune system. Because when you wash your hands, you make a large part of the bacteria and viruses on your hand surface harmless (instructions for correct hand washing here) and a certain contact with pathogens is even good for us because we train our immune system. In addition, some bacteria even protect the skin. Nevertheless, hygiene is important especially in the cold season, when flu and cold waves regularly sweep through the country. And if there is no sink nearby, a disinfectant is ideal for on the go.

Make hand sanitizer or disinfectant
Make hand sanitizer or disinfectant at home yourself: Instructions

Checklist: You need this for the DIY hand disinfectant

It is best to get an amber glass bottle with a spray attachment in the pharmacy or online at Amazon * 🛒. Then fill them in as follows:

  • 80 ml alcohol ( isopropyl alcohol *)
  • 20 ml aloe vera juice *
  • 5 drops of an essential oil *: either tea tree, clove, lavender, lemon, rosemary, cinnamon or eucalyptus

Mix all the ingredients in the amber glass bottle and shake well before each use.

The essential oils it contains are a natural remedy for germs, bacteria, viruses and fungi. Alcohol disinfects very well, aloe vera does too – and the aloe content also nourishes the skin. If you prefer to clean surfaces with the spray, simply replace the aloe content 1: 1 with alcohol.

Would you prefer a hand gel? Then add 1 to 1.5 grams of xanthan * to change the consistency. Fill the gel into a brown bottle with a pump attachment *.

Use hand disinfectant correctly

  1. Spray your hands with the spray from a distance of 5 centimeters until the palms are wet and also spread between your fingers – similar to the soap used to wash your hands.
  2. Leave on for up to 30 seconds.
  3. Massage disinfection gel into your hands for 20 to 30 seconds so that it can develop its optimal anti-germ effect.

Incidentally, the World Health Organization has also published instructions for a self-mixed disinfectant. According to the editorial network Germany, the WHO recipe contains the following ingredients, which are mixed and mixed well:

  • 800 ml of alcohol or ethanol
  • 200 ml of boiled water
  • and some glycerin *

It is important that you do not mix the ingredients near fire or hot objects, because ethanol is highly flammable.

How to properly use hydroalcoholic gels?

Free sanitizer
Free hand sanitizer

First thing: do not use hydroalcoholic gel on wet hands. They should only be used on dry hands. These solutions are not a substitute for washing with warm water and soap, as they do not completely clean your hands. But in the absence of water or soap, they can be useful.

Another way to make own sanitizing solution?

To compensate for the absence of hydroalcoholic gels in our pharmacies or our supermarkets, you can make them in a few steps:

  • Remember to disinfect your bottle and utensils with alcohol at 70 ° C, to eliminate any germs.
  • Then pour into your container 3 tablespoons of alcohol at 70 ° C
  • 2 teaspoons of glycerin
  • 6 tablespoons aloe vera gel
  • 46 drops of lavender essential oil (essential oils being very allergenic, remember to test them upstream on a small part of your skin)
  • 18 drops of tea tree essential oil

For this hydroalcoholic gel recipe, you will need a small container of about 75 ml. Do not forget to note the date of preparation, since the solutions made by hand do not keep for more than three months.

In the end of Make hand sanitizer or disinfectant

The glycerin component in the WHO DIY disinfectant recipe is intended to protect the skin. The problem: alcohol and ethanol attack the fatty layer of the skin and dry the hands. All in all, homemade disinfectants are more of an emergency solution when Sagrotan, Steriulium & Co. are hardly available in pharmacies or drugstores. Experts from various pharmacists warn against making disinfectants themselves because they use flammable chemicals. So caution is definitely required. And a disinfectant from the pharmacy should be the first choice.

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Sanitize mobile: Experts told how to properly sanitize a smartphone

Sanitize mobile

Sanitize mobile: Due to the coronavirus pandemic, people try to visit public places less often and wash their hands thoroughly. But many forget to sanitize their smartphone, although it is the most contaminated item, and through it you can become infected with a coronavirus.

How to sanitize gadgets?

The device must not be immersed in a disinfectant or any other liquid, as this will damage it. The smartphone must be turned off, disconnect all cables and gently wipe it on all sides with a cloth moistened with disinfectant.

After this, wash your hands thoroughly.

It is also worth noting that the disinfectant must contain at least 70% isopropyl alcohol. In addition, you can use disinfectant wipes.

Sanitize mobile

The device must not be immersed in a disinfectant or any other liquid, as this will damage it. The smartphone must be turned off, disconnect all cables and gently wipe it on all sides with a cloth moistened with disinfectant.

After this, wash your hands thoroughly.

  • Samsung is giving free sanitization service of Galaxy smartphones in 19 countries. Under this, customers can get them sanitized by taking wearable including Samsung’s smartphones at the center. In a study, it has also been found that more than 17 thousand bacteria genes have been found in the phones of high school students.
  • Apple has also told about ways to sanitize iPhone on its website. The company has given some ways by updating its pages.
Sanitize mobile
Sanitize mobile: Experts told how to properly sanitize a smartphone

Since you clean the hand with an alcohol based sanitizer, can you clean the iPhone with alcoholic sanitizer?
Apple has stated on its official website that with 70% Isopropyl Alcohol Wipe or Clorox Disinfecting Wipe, you can wipe the outer surface of your iPhone with light hands. Do not use bleach. No hole should have a moisturizer. 

It is also worth noting that the disinfectant must contain at least 70% isopropyl alcohol. In addition, you can use disinfectant wipes.

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Nerve cells make friends with printed muscles, 3D printing of living tissue

Nerve cells make friends

Nerve cells make friends : American doctors were able to accelerate the integration of printed muscles into a living body, supplying them with nerve cells during creation. Before that, researchers tried to use 3D printing to heal large muscle wounds, implanting artificial tissue into them, but it did not take root well. In the future, the new method will fully restore the performance of even those muscles that have lost more than a quarter of the volume as a result of injuries and diseases. The article was published in the journal Nature Communications .

3D printing of living tissue

3D printing of living tissue has been mastered for several years and has high expectations in medicine. The fact is that donor organs from another person require the use of immuno suppressants, may not take root and, most importantly, remain extremely scarce material. In 3D printing, organs are created from artificially bred cell cultures, from the very beginning biologically compatible with the patient, and they can be produced in any quantity.

Nerve cells make friends
Nerve cells make friends with printed muscles, 3D printing of living tissue

A team of scientists at Wake Forest University, led by Dr. Ji Hyun Kim, has explored the possibilities of transplanting printed muscle tissue into a living organism. The fact is that if, as a result of mechanical injuries, burns or frostbite, a muscle has lost more than 20 percent of its volume, it practically cannot independently regenerate and restore full functionality. Previously, researchers managed to transplant artificially grown tissue into such a muscle, and it took root, but the problem was that the nervous system had been integrating new fibers for a very long time. As a result, they managed to atrophy and degrade faster than the body could begin to control them.

Relation between muscle cells and nerve cells

To speed up this integration, doctors decided to try to introduce nerve cells immediately when printing. The task was complicated by the fact that the abundance of foreign cells prevents the muscle from forming fibers, without which the muscles could not contract. Through experiments, it was found that the ideal balance between the embryos of muscle cells and nerve cells is approximately 300 to one. Both those and others landed a print head on a polymer, which after transplantation into the body dissolves.

Then, 40 percent of the thigh muscle was surgically removed from several laboratory rats and four control groups were formed from the animals — intact (but immobilized for atrophy), without tissue transplantation, with transplantation of pure muscle fibers and a neuro muscular composite. As a result, it turned out that the inclusion of nerve cells in the composition of the tissue really significantly accelerates its acceptance by the body. But most importantly, only when using this method it was possible to achieve a complete restoration of functionality – eight weeks after the operation, the contraction force was almost equal to that of muscles that simply did not work.

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