body

Human body: 10 surprising facts

19/12/2021 by

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Man is trying to unravel the mysteries of the Universe, although there is so much unknown around him. What can we say – even our own body remains a mystery to us. We either do not know its capabilities or perceive them erroneously. The human body is capable of surprising – some interesting facts about it will prove this.

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Sweat doesn’t smell bad

The smell of human sweat is annoying, it’s useless to argue with that. It is no coincidence that various deodorants and lotions are used to muffle unpleasant odors. But our body does not emit a foul-smelling liquid. Sweat is mostly water – what kind of smell could it have? But in addition to this, acids are also part of the secretions. They are, in particular, secreted by the apocrine glands located on the chest, groin and axillary regions. Already on the skin, bacteria decompose these acids. In this case, the unpleasant smell comes just from the waste products of microorganisms, and not directly from sweat.

♥ ON TOPIC: Ventriloquists (ventrologists), or how to speak and sing without opening your mouth (video).

Our eyes see the world upside down

This thought will not be easy to get used to. But the fact was proved by René Descartes in the 17th century. The famous physicist transferred to a paper screen an image from a cut out bull’s eye. And the picture just turned out to be inverted, but there is nothing contrary to the laws of physics in this. Light is refracted as it passes through the cornea and lens, so that the visible object is projected upside down.

But we still perceive the picture correctly – the sky is above us, and the earth is under our feet. Our brain makes the necessary adjustments. He not only glues the picture transmitted from two eyes, but unfolds it back, making it correspond to reality.

An interesting experiment was conducted in the 1890s by psychologist George Stratton. He used special glasses that turn the picture over. The psychologist wore the device for eight days. But already on the fifth day, the brain adjusted to an unusual picture for him and stopped correcting it – thus Stratton again began to see the world in its usual form. It was only when the experiment ended, and the glasses were removed, that the human brain was forced to rebuild again.

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Up to three kilograms of bacteria live in our body

It is a mistake to think that our body is our own. It is a great home for various microorganisms. In our body, the number of bacteria is three times the number of cells. But the weight of these creatures is relatively small compared to bones, muscles, tissues. A person with a height of 170 cm and a weight of 70 kg lives from 1 to 3 kg of bacteria.

But this is not all the inhabitants of our body, viruses, fungi, archaea and protists live in it. You should not be afraid of these life forms – some of them are even very useful, helping, for example, digestion. There are also bacteria that protect their “home”, our body, from other microorganisms or harmful substances. Some bacteria simply exist without causing harm, but also not helping. And the effect on the body of certain microorganisms generally remains a mystery to scientists.

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Our body produces cyanide

Cyanide is a well-known powerful poison that living things should stay away from. In fact, this is a whole group of substances. The cyanides of potassium, hydrogen and sodium prevent living cells from absorbing oxygen, which quickly leads to the death of the entire body. It is no coincidence that this substance has been used for a long time as a poison, including against pests, and chemical weapons were also created on the basis of cyanide. Only a tenth of a gram of this dangerous substance is enough to kill a person weighing 70 kg.

From this point of view, it is surprising that we constantly use cyanides, of course, in small amounts. And their source can be quite ordinary apples and spinach. And even our body produces cyanide. 100 grams of tissue contains up to 50 micrograms of a hazardous substance. Fortunately, it does not accumulate in cells, but is excreted in respiration and urine.

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A person does not have four blood types at all.

It is a fairly well-known fact that people have four blood groups. This is taught at school. It is believed that the first group (0) is present in 44% of people, the second (A) – in 42%, the third (B) – in every tenth, and the rarest is the fourth (AB), which is found in 4% of people.

But in reality, everything is much more complicated. The International Society of Blood Transfusion has counted 29 groups! The four groups known to us are determined by the AB0 and Rhesus antigens, but they are far from the only ones. Little-known antigens were usually named after the patients in whose blood they were found. And it is far from the fact that this list is final – in the future we can expect the appearance of even more blood groups.

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Fingers wrinkled from warm water are beneficial.

We often observe a slightly strange effect – as soon as we sit in the bathtub or pool, our fingers become covered with deep wrinkles. Scientists see a certain meaning in such behavior of the organism. With an increase in humidity, special mechanisms are activated that change the shape of the skin on the fingers. And all for the sake of increasing our efficiency – better grip of wet objects.

For example, if a person drowns, then in a panic he will try to grab onto anything, as long as it brings salvation. Likewise, on a slippery surface, we also try to stick to the nearest object. Scientists from the University of Newcastle have found that people with wrinkles on their skin from water are better able to stay on slippery surfaces. So nature has given us a pretty good accident aid.

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You can’t tickle yourself

Tickling is hardly unpleasant, but it is definitely uncomfortable. Feeling it, I just want to break free, twitch or just laugh. Surprisingly, there is such a reaction if you are tickled by a stranger. But if you start stroking yourself in dangerous places, nothing will happen. So does this phenomenon have a psychological basis? Who tickles, not where tickles?

Scientists suggest that the tickling response has become a gift of evolution for humans. This is how our body reacted to insects, spiders and other unsafe reptiles crawling on it. If our body is tickled by someone outside, then this is perceived by the brain as a kind of danger signal. But if you perform similar actions yourself, then nothing will happen – the brain understands who exactly affects the body.

But if a person begins to laugh or react nervously to his own tickling, then this may turn out to be a bad symptom. Such signs occur with damage to the cerebellum or with schizophrenia.

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A woman’s heart beats faster than a man’s

Our hearts beat unevenly, accelerating if necessary, including from surging feelings. So is it any wonder then that women’s hearts beat on average more often – 78-82 times per minute versus 70-72 times for men. And there is a completely scientific explanation for this – female sex hormones exert their influence. They directly affect the cells of the myocardium, provoking their contraction. But for such a feature, women have to pay with more frequent cases of arrhythmias and tachycardia.

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A person produces a whole bottle of saliva per day.

We begin to feel discomfort if saliva disappears in our mouth. The body constantly produces this fluid. During the day, a volume of 0.5-1.5 liters accumulates, this is from two to six glasses of saliva. And we do not choke on it just because we swallow reflexively. But at night this can be a problem – not all people know how to do it in a dream. And the body also took care of this – less saliva is produced at night. That is why in the morning, immediately after sleep, the mouth feels dry.

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Our bodies are made of stardust

This fact has become widely replicated, thanks to the statements of the physicist Lawrence Maxwell Krauss. The atoms of our body did not appear out of nowhere – they are particles of the once exploded stars. Surprisingly, the atoms of one part of our body could belong to a completely different star than the atoms of another part of the body. There is something romantic about it – man is made of stardust. If the stars did not explode, then we simply would not be in this world. Those chemical elements that underlie life on our planet, its appearance and development: carbon, oxygen, nitrogen and iron in the Universe did not originally exist. These elements appeared during the life of the stars. Their explosion helped various substances spread through space. Many believe that the gods gave us life, but scientists argue that the distant and already dead stars became its source.

Six elements form 97% of a person’s body weight: carbon, oxygen, hydrogen, nitrogen, sulfur and phosphorus. Actually, these are the most common elements on our planet. They were born in the course of nuclear fusion in the depths of stars billions of years ago, when neither the Sun nor our planet existed at all. But not only we are made of stardust, but the whole world around us: animals, objects, sea, air, nature, mountains.

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DISCOUNT (379p → 0p) Game Homo Machina for iPhone and iPad – an exciting journey deep into the human body

11/11/2021 by

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More recently, Darjeeling Productions presented a new project called Homo Machina. This is an addicting puzzle adventure that takes you on a journey deep into the human body and immerses yourself in a unique system of nerves, vessels and valves. The game is a kind of tribute to the German obstetrician-gynecologist, popularizer of science Fritz Kahn.

Download Homo Machina for iPhone and iPad (App Store)

Your main goal is to do everything possible to ensure that the human body functions throughout the entire work for and performs daily activities. When waking up, hardly many people think about the amazing mechanics of the human body, but in Homo Machina, the process of opening the eyes and inhaling the smell of morning coffee or tea becomes the main action that, with the help of fascinating puzzles, sheds light on how our body functions.

The project is based on bright and unusual illustrations by Fritz Kahn, who is sometimes also called the “grandfather of infographics”. Kahn wrote about 20 books, in which he turned dry scientific facts into stunning surreal illustrations explaining the work of the human body in a language accessible to a common layman.

During World War II, the Nazi regime banned Kahn’s works and until recently almost nothing was known about them in academic circles. The works of the scientist were discovered by chance by the young designer Thilo von Debschitz, who, with the assistance of his sister Ula, in 2009 released a collection of illustrations “Fritz Kahn – Man Machine”. A few years later, the book caught the eye of Darjeeling Productions producer Mark Lustigman. Fully enchanted by Kahn’s Industrial Palace poster, which depicts the human body as a factory with industrial workshops, Lustigman showed the illustration to his business partner and two years later the Homo Machina project was born.

The game starts with you waking up, opening your eyes and triggering cognitive processes to get out of bed, have breakfast, get to work, and go on a date with a girl in the evening.

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The game mechanics of Homo Machina are reminiscent of the Machinarium puzzle (the iPad version came out in late 2011). In both games, you need to click on different objects to activate a particular system or solve a puzzle. Homo Machina is done in muted, warm colors inherent in Kahn’s work. Exploring the game space is fun in itself, but it’s also the only way to figure out what the next step should be. For example, players will need to click, scroll, or otherwise manipulate sections in order to open their eyes. The eye itself becomes a kind of video camera that records visual information.

But opening your eyes is just the beginning. Then you have to have breakfast and go to work. While there are several puzzles in the game that can confuse you, the working day is the longest and most stressful part of the game. After the labors of the righteous, there comes a time of rest. In this part, the game will tell you what happens in the body while listening to good music, or how the heart reacts when the main character is going on a date.

The passage of Homo Machina will only take a couple of hours, but even in this short time, it will give a lot of pleasure to all fans of adventure puzzle, regardless of age.

The game is compatible with iPhone, iPad or iPod touch running iOS 9.0 or later. The game has been translated into Russian.

Download Homo Machina for iPhone and iPad (App Store)

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Goosebumps, why fingers wrinkle from water and other facts about the human body

22/03/2021 by ALOK DAS

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The human body is a complex system in which everything is interconnected. The body reacts differently in different circumstances, and many of these reactions are so common that people very rarely wonder why this is happening.

Why does the skin on my fingers wrinkle in the water?

Hairless areas of the skin react in a special way to water. Unlike the rest of the body, the skin on the fingers, toes, palms and feet becomes wrinkled after being in water. According to one of the scientific theories, this is the result of adaptation – fingers with wrinkles and bumps are better at holding dry and wet objects.

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Why does the “brain freeze” effect occur when eating cold food?

Most people have probably experienced an unpleasant headache after a few sips of a cold drink or ice cream. Hypothermia of the brain (brain freeze) occurs due to the fact that when eating chilled food, the vessels in the back of the throat begin to contract intensely from the cold, and then expand again when the temperature of the tissues becomes higher. This triggers a nerve response, which causes the headache.

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Why does trembling occur?

The appearance of tremors in the body occurs for various reasons, one of them is the body’s reaction to cold. In this case, shivering becomes a defense mechanism against hypothermia. Under the influence of cold, muscles begin to contract frequently, producing muscle energy, thereby raising the body temperature to normal.

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Why does human growth increase in space?

It was noticed that during a long stay in space, the growth of astronauts increases, and after returning to Earth, it returns to a normal state. Scientists explain this phenomenon by the fact that on Earth, under the pressure of gravity, the vertebrae shrink, and in zero gravity, the gaps between the vertebrae expand and the spinal column stretches, and with it the growth of a person increases.

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Why do joints hurt when the weather changes?

Some people can predict changes in the weather from knee pain. This may be due to the fact that with the onset of cold weather, the nerve endings in the tissues around the joints become tense and stiff.

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Goosebumps or why goose bumps appear?

Goose bumps are small pimples at the base of the hairline on human skin that occur in cases of emotional stress (adrenaline rush), or when the body is cold. This condition is explained by the fact that the human body does not have a large amount of hair and the contraction of the miniature muscles associated with each hair, which occurs when goose bumps appear, is not as effective for warming as in animals.

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Interesting facts about the human body that you might not know about

17/01/2021 by ALOK DAS

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Man tries to unravel the secrets of the Universe, although there is so much unknown around him. What can we say – even our own body remains a mystery to us. We either do not know its capabilities or perceive them erroneously. The human body is capable of surprising – some interesting facts about it will prove this.

♥ BY TOPIC: Old child: Progeria is a disease that leads to premature aging.

Sweat doesn’t smell bad

The smell of human sweat is annoying, it’s useless to argue with that. It is no coincidence that various deodorants and lotions are used to muffle an unpleasant scent. But our body does not emit a foul-smelling liquid. Sweat is mostly water – how can it smell? But besides this, acids are also part of the secretions. They are, in particular, secreted by the apocrine glands located on the chest, groin and axillary regions. Already on the skin, bacteria break down these acids. At the same time, the unpleasant odor comes just from the waste products of microorganisms, and not directly from sweat.

♥ BY TOPIC: Ventriloquists (ventrologists), or how to speak and sing without opening your mouth (video).

Our eyes see the world upside down

This thought will not be easy to get used to. But the fact was proved by René Descartes in the 17th century. The famous physicist transferred an image from a cut out bull’s eye onto a paper screen. And the picture just turned out to be upside down, but there is nothing contrary to the laws of physics in this. Light is refracted as it passes through the cornea and lens, so that the visible object is projected upside down.

♥ BY TOPIC: There are 16 circles in this picture, can you see them?

Up to three kilograms of bacteria live in our body

It is a mistake to think that our body is our own. It is a great home for various microorganisms. There are three times the number of bacteria in our body. But the weight of these creatures is relatively small compared to the bones, muscles, tissues. A person with a height of 170 cm and a weight of 70 kg lives from 1 to 3 kg of bacteria.

But this is not all the inhabitants of our body, viruses, fungi, archaea and protists live in it. You should not be afraid of these life forms – some of them are even very useful, helping, for example, digestion. There are also bacteria that protect their “home”, our body, from other microorganisms or harmful substances. Some of the bacteria just exist without causing harm, but also not helping. And the effect on the body of certain microorganisms generally remains a mystery to scientists.

♥ BY TOPIC: 10 mistakes that made you still not successful.

Our body produces cyanide

Cyanide is a well-known powerful poison that living things should stay away from. In fact, this is a whole group of substances. The cyanides of potassium, hydrogen and sodium prevent living cells from absorbing oxygen, which quickly leads to the death of the entire body. It is no coincidence that this substance has been used for a long time as a poison, including against pests, and chemical weapons were created on the basis of cyanide. Only a tenth of a gram of this dangerous substance is enough to kill a person weighing 70 kg.

From these positions it is surprising that we constantly use cyanides, of course, in small amounts. And their source can be quite ordinary apples and spinach. And even our body produces cyanide. 100 grams of tissue contains up to 50 micrograms of a hazardous substance. Fortunately, it does not accumulate in cells, but is excreted in respiration and urine.

♥ BY TOPIC: Space velocities: how fast does one need to fly to leave the Earth, planetary system and galaxy?

A person does not have four blood types at all

A fairly well-known fact is that people have four blood groups. This is taught at school. It is believed that the first group (0) is present in 44% of people, the second (A) – in 42%, the third (B) – in every tenth, and the rarest – the fourth (AB), which is found in 4% of people.

♥ BY TOPIC: Who has the most followers on Instagram – 40 most popular accounts.

Fingers wrinkled from warm water are beneficial

We often observe a slightly strange effect – as soon as we sit in the bathtub or pool, our fingers become covered with deep wrinkles. Scientists see a certain meaning in such behavior of the organism. With increasing humidity, special mechanisms are activated that change the shape of the skin on the fingers. And all for the sake of increasing our efficiency – better grip of wet objects.

♥ BY TOPIC: Hell for a perfectionist: 50 photos that destroy harmony.

You can’t tickle yourself

Tickling is hardly unpleasant, but it is definitely uncomfortable. Feeling it, you just want to break free, twitch or just laugh. Surprisingly, such a reaction is present if you are tickled by a stranger. But if you start stroking yourself in dangerous places, nothing will happen. So, does this phenomenon have a psychological basis? Who tickles, not where tickles?

Scientists suggest that the tickling response has become a gift of evolution for humans. So our body reacted to insects, spiders and other unsafe reptiles crawling on it. If our body is tickled by an outsider, then this is perceived by the brain as a kind of danger signal. But if you perform similar actions yourself, then nothing will happen – the brain understands who exactly affects the body.

But if a person begins to laugh or react nervously to his own tickling, then this may be a bad symptom. Such signs occur with damage to the cerebellum or with schizophrenia.

♥ BY TOPIC: How many years do trees live (table).

A woman’s heart beats faster than a man’s

Our hearts beat unevenly, accelerating when necessary, including from surging feelings. So is it any wonder then that women’s hearts beat on average more often – 78-82 times per minute versus 70-72 times for men. And there is a completely scientific explanation for this – female sex hormones exert their influence. They directly affect the cells of the myocardium, provoking their contraction. But for such a feature, women have to pay with more frequent cases of arrhythmias and tachycardia.

♥ BY TOPIC: What is horsepower and how much horsepower is in one horse?

A person produces a whole bottle of saliva per day

We begin to feel discomfort if saliva disappears in our mouth. The body constantly produces this fluid. During the day, a volume of 0.5-1.5 liters accumulates, which is from two to six glasses of saliva. And we do not choke on it just because we swallow reflexively. But at night this can be a problem – not all people know how to do it in a dream. And the body also took care of this – less saliva is produced at night. That is why in the morning, immediately after sleep, the mouth feels dry.

♥ BY TOPIC: The hidden meaning of the logos of famous companies.

Our bodies are made of stardust

This fact began to be widely replicated, thanks to the statements of the physicist Lawrence Maxwell Krauss. The atoms of our body did not appear out of nowhere – they are particles of the once exploded stars. Surprisingly, the atoms of one part of our body could belong to a completely different star than the atoms of another part of the body. There is something romantic about it – man is made of stardust. If the stars did not explode, then we simply would not be in this world. The chemical elements that underlie life on our planet, its appearance and development: carbon, oxygen, nitrogen and iron did not exist in the Universe from the very beginning. These elements appeared during the life of stars. Their explosion helped various substances spread through space. Many believe that the gods gave us life, but scientists argue that the distant and already dead stars became its source.

Six elements form 97% of a person’s body weight: carbon, oxygen, hydrogen, nitrogen, sulfur and phosphorus. Actually, these are the most common elements on our planet. They were born in the course of nuclear fusion in the depths of stars billions of years ago, when there was neither the Sun nor our planet at all. But not only we are made of stardust, but the whole world around us: animals, objects, sea, air, nature, mountains.

See also:

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What happens to the body if you completely stop drinking

13/12/2020 by ALOK DAS

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New Year’s holidays become for many a life trait that separates the old way of life from the new. It is almost impossible to stay away from a feast and abundant libations in the company of friends and relatives, but starting the year off alcohol seems to be a reasonable measure. And someone ties up for a while, while someone radically changes their life, making it completely sober. And even a glass of beer or wine at dinner becomes redundant. Not only does the mind no longer succumb to the influence of alcohol, so our body reacts to the refusal of alcohol. We will tell you what begins to happen to him.

♥ BY TOPIC: Ventriloquists (ventrologists), or how to speak and sing without opening your mouth (video).

Of course, there is a place for half measures in the “drink” or “not drink” approach. It is one thing to drink half a bottle of wine or a glass with 100 ml of cognac, another thing is a small glass of wine for dinner. Doctors say that we can talk about safe doses of alcohol, which will not lead to an increase in health risks either now or in the near future. Acceptable doses of alcohol have been studied in many countries for many years, but experts have not come to a consensus. In search of the best advice, it is better to turn to the WHO recommendations.

That’s just this organization has several documents at once, which contain conflicting information about the permissible doses of alcohol. The AUDIT test documentation describes the low risk of alcohol consumption as 20 g of pure product per day. Translated into vodka, this is 63 ml, for wine – 200 ml of 12.5% drink or 500 5% beer. It is recommended to consume no more than 100 g of alcohol per week for both men and women. The document recommends at least 2 days a week not to consume strong drinks at all.

But another recommendation of the same WHO says about a threshold of 20 g of pure alcohol per day for women, while for men the allowable rate is twice as high. In a week, respectively, you can consume up to 140 g and up to 280 g of alcohol, respectively. There is no information about the days of abstinence at all. But for patients with alcoholism, it makes no sense to talk about safe doses – as soon as you start, a binge is immediately formed.

In biochemistry, maximum single doses of alcohol are determined, but this is not at all the same as safe doses. From a scientific point of view, it is believed that negative consequences will occur when consuming 1 gram of alcohol per 1 kg of body weight in men and 0.5-0.7 grams of alcohol per 1 kg of body weight in women.

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How small doses of alcohol affect the body?

The ability of alcohol to liquefy cell membranes is known, which makes them more fluid. That is why alcohol so actively influences the nerve cells that it causes toxic damage to the entire nervous system. The walls of the stomach and duodenum are also strongly affected. It is no coincidence that alcohol abuse can lead to stomach or intestinal ulcers, erosive hemorrhagic gastritis. An increased dose of alcohol forces the body to activate adaptive mechanisms, protecting the cell walls from rapid damage. It consists in increasing the content of cholesterol in the membrane. But such changes also affect all active structures associated with it: receptors, immune and enzyme complexes. They begin to work differently: the consumption of oxygen in the cells increases, they constantly demand it and do not tolerate the lack of it well. As a result, the heart muscle may lack oxygen during exercise. Such deficiency can cause ischemia and myocardial infarction. In general, the body’s immunity decreases, it begins to resist infections worse.

“Relaxation”, which alcohol is famous for, should not be abused – the opposite effect may form. Excitatory neurotransmitters begin to be produced in the body, and in a state of sobriety, we will begin to feel anxiety, anxiety and tension. And alcohol tolerance will gradually increase. As a result, more and more doses have to be taken to relax and intoxicate.

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How does a complete rejection of alcohol affect the body?

With the rejection of alcohol over time, the balance of neurotransmitters in the brain normalizes. A person will become calmer, his constant irritability, stress will go away, the quality of sleep and efficiency will increase.

And here is a list of specific changes with the body and body:

The complexion will become healthier, the redness caused by the expansion of capillaries will subside. And the puffiness will also pass.
Immunity will improve.
Body weight is stabilized and maybe even reduced, bowel function improves. The fact is that alcohol is considered a high-calorie product. If it provides from 7% to 10% of the body’s daily energy requirement, then the metabolic process will proceed normally. But abuse can lead to the fact that up to half of the energy will be given by alcoholic beverages. As a result, the mechanism of absorption of substances in the intestine will change. The body will no longer receive the nutrients it needs. Against this background, the negative impact of alcohol will only intensify.
The liver will work better, the organ will finally begin its original function – a natural filter and will neutralize other toxins in the body.
Dopamine metabolism will become normal, due to which the brain will increase its efficiency. A person will be able to concentrate longer, work with information. As a result, in a state of sobriety, due to increased efficiency, a person will be able to do much more than in times of even moderate alcohol consumption.
The cholesterol level is lowered, which will help maintain the health of the heart and blood vessels for longer. Alcohols affect the metabolic processes of fatty acids in the heart muscle, there are 3-4 times more of them. In other words, alcohol gradually destroys the heart’s natural defenses against atherosclerosis and heart attack.
Dehydration is a classic companion of intoxication, which causes imbalance in water and electrolyte balance. But the frequent use of alcohol causes the body to gradually get used to this state. As a result, it will begin to retain liquid even without drinking strong drinks. Such changes can lead to the development of arterial hypertension.
Women will be able to delay the onset of menopause and maintain their fertility longer.
The likelihood of malignant tumors of different localization will also decrease. It is known that in 75% of cases of larynx and oral cavity cancer, every second case of liver cancer and every fourth case of breast cancer are associated with alcohol abuse.

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Face swap, gender change, hairstyles, makeup, body shaping, effects and masks on photos and videos for iPhone – 20 best apps

20/10/2020 by ALOK DAS

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Recently, applications for instant face replacement in photos and videos are gaining popularity. In the App Store, this type of software is presented by numerous solutions from various developers, and in order to somehow navigate in all this variety, we will consider the most striking examples of such programs for the iPhone and iPad.

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Face swap, gender change, hairstyles, makeup, body shaping, effects and masks on photos and videos for iPhone – 20 best apps

Instagram (effects and masks)

You can apply a mask to a portrait while shooting using regular means of the Instagram application. Having switched to camera mode, you should click the button with a smiley in the lower right corner, which will open the effect panel.

After choosing the mask you like, you can take a photo and save it to your Story, and then, if you wish, add it to the Instagram feed as a regular photo.

Download Instagram
All Instagram chips

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Vkontakte (effects and masks by category)

The algorithm for applying effects works in a similar way in the mobile client of the Russian social network Vkontakte. Go to the News section, launch the camera by pressing the corresponding button in the upper left corner and then open the mask menu using the button with a smiley face. Filters here are conveniently divided into categories and are correctly applied when shooting both photos and videos.

Download Vkontakte

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Snapchat (age, gender reassignment, effects and masks)

The most popular application that allows you to add various masks, effects, stickers and text on the photo. Using Snapchat, the user can take photos, shoot videos, add text and pictures and send them to a manageable list of recipients.

In the spring of 2019, new “masks” appeared in the application, allowing you to apply effects to the taken selfie photos. One of the most popular filters allowed changing the gender. Men could imagine what kind of woman they could be and vice versa.

When processing a male photo, the filter makes the skin smoother, enlarges the eyes and adds longer hair. For a female mask, a characteristic feature is the appearance of bristles.

The “kiddie” Snapchat filter is also very popular.

Download Snapchat

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FaceApp (age, hairstyles, gender reassignment, smiles)

This application will make even the most severe and serious person smile. Also in the program, you can age or rejuvenate the object of change and even change its gender. FaceApp uses popular neural networks to edit photos.

Download FaceApp

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Apps from ModiFace (change hair color, eyes and makeup)

Renowned augmented reality app developer ModiFace has introduced three separate apps to change hair color (Hair Color), eye color (Eye Color Studio) and makeup (MakeUp). The system recognizes the user’s face and applies virtual elements to it.

Download Hair Color
Download MakeUp
Download Eye Color Studio

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Kirakira + (glitter animation)

The program automatically adds animation of sparkling glitter to various objects in the frame when shooting a video (it works with photos, but the effect is less realistic). The application independently determines and “highlights” the necessary elements – jewelry, makeup fragments, shiny things and accessories.

Download Kirakira +

Program overview

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Meitu (correction of the figure and shape of the face, skin color, removal of spots and scars + effects and filters)

In addition to using augmented reality to change the figure and face, skin color and add various effects and filters, Meitu is a full-fledged photo editor where you can change photos, scale, and create collages.

Download Meitu

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YouCam Makeup (selection of cosmetics, hair color change + effects)

As the name suggests, the app is marketed as a virtual make-up artist and allows you to apply professional-grade makeup to portrait photos. YouCam Makeup makes it easy to whiten smoky teeth, remove skin imperfections, correct pallor or redness of the face, and add shine to a doomed look.

Download YouCam Makeup

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Face & Shape Photo Editor Lite (Face Shape & Shape Correction)

The name of the application itself speaks unambiguously about its purpose. This photo editor is for face and body shaping. Face & Body Photo editor Lite gives you the opportunity to enlarge your hips and chest, as well as apply the outlines of the press to your body. This program allows you to simulate the results of plastic surgery. With the app, you can easily reshape your face or nose and even perform virtual liposuction.

Download Face & Body Photo editor Lite

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Fabby Look (hair color change)

This product gives you the opportunity to experiment with exotic hair colors such as green or even purple. The application was created by the Belarusian company AIMATTER, whose creator, Yuri Melnichek, is known as a co-founder of the maps.me map service.

Download Fabby Look

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Perfect 365 (face shape correction, make-up)

Finding the best makeup for yourself is a difficult task for many women. But this app will let you know which image suits you best. You just need to upload your selfie, outline the lips, eyes, facial contours and then experiment with makeup options.

On the Skin tab, you can remove dark circles under the eyes and wrinkles on the skin. Eyes gives you the option to change the color of your eyes, while Mouth can help you virtually whiten your teeth and shape a Hollywood smile.

Download Perfect 365

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Wanna Nails (nail polish selection)

This beauty application was also created by a Belarusian team, this time WANNABY. The program allows you to evaluate and try on the color shades of various nail polishes before purchasing them. You can experiment with color matching or evaluate shade combinations based on skin color, lighting, and overall style.

Download Wanna Nails

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Photo Editor Effects Color Pop (change the color of some elements in the photo)

This application can take pictures, leaving only the selected elements of the composition in color – eyes, lips, fragments of clothing. With the proper level of imagination and originality, the result is impressive.

Download Photo Editor Effects Color Pop

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B612 – Beauty & Filter Camera (photo enhancement + effects and masks)

The main function of the application is face correction in real time (before a photo or during video shooting). The developers offer more than 1500 different “stickers” that you can try on your face, thereby adding emotional coloring to the portrait. In addition, the B612 does an excellent job of automatically enhancing the user’s physiognomy, getting rid of skin imperfections, folds, wrinkles, etc.

Download B612 – Beauty & Filter Camera

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Cymera (body shaping, photo retouching + masks, selfie effects and filters)

The impressive functionality of the application will be quite difficult for a novice user to master, but the result will be photo editing at a level close to professional. It will be possible to take selfies at 8 am on Monday and turn them into pictures worthy of avatars – the program will cleanse and tighten the skin of the face, remove defects and redness of the eyes. A lot of filters and effects are applied in real time, there are whole packs (free!) Of ready-made presets for selfies, group shots, etc.

Download Cymera

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MomentCam (turns photos into cartoons and stickers)

The program turns a user’s selfie into a funny caricature; for this, it is enough to correct the automatic recognition of eyes and lips. Then you can choose any body you like for your character (superman, biker, clown, sorceress, etc.) or, for example, make a GIF animation out of the resulting picture.

Download MomentCam

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Another virtual makeup artist who can work alone. That is, the initial optimization of the portrait (removal of skin defects, oily sheen, flare from the flash, red eyes) is automatically performed by the application without user intervention. If the result is still not good enough, you can play with the effects and their manual adjustments.

Download Visage Lab

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Bestie (Selfie Camera, Retouch and Face Correction + Effects)

A simple application that adds functionality as needed (you can upload packages with filters divided into categories). Bestie allows you to mute the camera and improve the quality when shooting selfies in low light conditions, as well as immediately mirror the resulting image. It is quite simple to apply effects here, there are very few settings and options.

Download Bestie

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Zombify (makes zombie faces)

As the name suggests, Zombify turns users into zombies. The application contains many different effects, including animation.

Download Zombify for iPhone and iPad

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Face Swap Live

The main feature of the application is the ability to exchange faces with another user caught in the camera lens. Besides, you can apply the effects and masks available in the database to pictures and videos.

Download Face Swap Live

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Cartoon Face (creates facial animation)

The application allows you to get an animated cartoon caricature from your photo or a friend’s photo. More than ten fantasy effects, including parody and emotion effects (surprise, flirting, smile, etc.).

Download Cartoon Face

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Face swap (substitutes face in templates)

Thanks to this solution, users will be able to create an unexpected image for themselves in one click – a knight, gangster, nun, clown, etc.

The program automatically substitutes faces from pictures to ready-made templates, after which it itself corrects the image so that the output is the most realistic photomontage.

Download the Face Swap app

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OldBooth (substitutes face in retro templates)

One of the oldest face changer apps in the App Store. OldBooth allows you to transform a user’s photo into original retro characters. With the help of in-app purchases, you can purchase a collection of effects corresponding to different periods of the last century.

Download OldBooth

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DISCOUNT (299p → 149p) Homo Machina game for iPhone and iPad – a fascinating journey deep into the human body

27/09/2020 by ALOK DAS

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More recently, Darjeeling Productions presented a new project called Homo Machina. This is an addicting puzzle adventure that takes you on a journey deep into the human body and delves into a unique system of nerves, blood vessels and valves. The game is a kind of tribute to the German obstetrician-gynecologist, popularizer of science Fritz Kahn.

Download Homo Machina for iPhone and iPad (App Store)

Your main goal is to do everything possible to ensure that the human body functions throughout the entire working day and performs daily activities. Waking up, hardly many people think about the amazing mechanics of the human body, but in Homo Machina, the process of opening the eyes and inhaling the smell of morning coffee or tea becomes the main action, which, with the help of fascinating puzzles, sheds light on how our body functions.

The project is based on bright and unusual illustrations by Fritz Kahn, who is sometimes called the “grandfather of infographics”. Kahn wrote about 20 books, in which he turned dry scientific facts into stunning surreal illustrations that explained the work of the human body in a language accessible to a common layman.

During World War II, the Nazi regime banned Kahn’s works and until recently almost nothing was known about them in academic circles. The works of the scientist were accidentally discovered by the young designer Thilo von Debschitz, who, with the assistance of his sister Ula, in 2009 published a collection of illustrations “Fritz Kahn – Man Machine”. A few years later, the book caught the eye of Darjeeling Productions producer Mark Lustigman. Fully enchanted by Kahn’s Industrial Palace poster, which depicts the human body as a factory with industrial workshops, Lustigman showed the illustration to his business partner and two years later the Homo Machina project was born.

The game starts with waking up, opening your eyes and triggering cognitive processes to get out of bed, have breakfast, get to work, and go on a date with a girl in the evening.

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The game mechanics of Homo Machina are reminiscent of the Machinarium puzzle (the iPad version came out in late 2011). In both games, you need to click on different objects to activate a particular system or solve a puzzle. Homo Machina is done in muted, warm colors inherent in Kahn’s work. Exploring the space is fun in itself, but it’s also the only way to figure out what the next step should be. For example, players will need to click, scroll, or otherwise manipulate sections in order to open their eyes. The eye itself becomes a kind of video camera that records visual information.

But opening your eyes is just the beginning. Then you have to have breakfast and go to work. While there are a few puzzles in the game that may confuse you, the working day is the longest and most stressful part of the game. After the labors of the righteous, there comes a time of rest. In this part, the game will tell you what happens in the body while listening to good music, or how the heart reacts when the main character is going on a date.

The passage of Homo Machina will only take a couple of hours, but even in this short time, it will give a lot of pleasure to all fans of adventure puzzles, regardless of age.

The application is available in the App Store at a price of 299 rubles. The game is compatible with iPhone, iPad or iPod touch running iOS 9.0 and later. The game has been translated into Russian.

Download Homo Machina for iPhone and iPad (App Store)

In the meantime, there is no need to worry about it. ”

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Body mass index (BMI): what it is and how to calculate it for men and women

02/08/2020 by ALOK DAS

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Own body weight is a relevant issue for most people. While some are struggling with excess weight, others are exploring what could be the cause of unnatural thinness. But what body weight can be generally considered normal for a particular person? A simple and popular formula will help, albeit inconclusive, to resolve this issue.

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What is Body Mass Index?

This concept can be found in the form of abbreviations BMI, BMI or phrases Body Mass Index, Quetelet index. It allows you to assess the degree of correspondence between the mass of a person and his height. Due to this, it is possible to understand whether a person’s weight is normal, overweight or underweight. BMI indicators are often taken into account when determining the indications for treatment. This value is calculated using a simple formula:

BMI = weight / height²

where body weight is measured in kilograms and height in meters.

The World Health Organization has developed a special table for interpreting the indicators of people over 20 years old:

Height to weight ratio	Body mass index
Lack of body weight (deficiency)	less than 18.5
Norm	18.5-25
Overweight, overweight	25-30
Obesity	30–35
Severe obesity	35-40
Very severe obesity	more than 40

In children and adolescents, the exact values depend on age. The norms for them can be found on the WHO website.

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Who came up with the idea of calculating the body mass index?

The body mass index formula was invented by the Belgian astronomer, mathematician, statistician and sociologist Adolphe Quetelet back in 1869. However, the concept gained wide popularity only 100 years later, thanks to the research of the physiologist and obesity specialist Ansel Keys. This scientist studied the parameters of 7,400 people and 5 countries, trying to find a universal and optimal formula for determining excess weight. It turned out that a simple BMI variant best defines obesity.

This formed the basis for further large-scale research. Scientists no longer needed to use expensive and complex ways to measure body fat. It was enough to calculate the indices of several hundred people from different times and draw certain conclusions based on this. Of course, the method is not suitable for everyone. When we talk about health, everyone wants to know specific numbers for themselves, and not general average parameters.

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Why do you need to know the body mass index?

Body mass index allows you to determine the risks of certain diseases. WHO suggests that being overweight increases the likelihood of type 2 diabetes, coronary heart disease, and cancer. Overweight causes 2.8 million deaths and 36 million disabilities worldwide each year. WHO recommends that each person stick to their body index in the range of 18.5 – 25 points. Above this mark, the risk of disease increases, and after 30 it increases even more significantly.

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The accuracy of BMI-based predictions

And although the index is often used in medicine, there is more and more information about its inaccuracy. Several facts can be cited that cast doubt on the choice of a formula as the best tool for determining excess weight.

1. BMI does not measure the actual percentage of muscle and fat

The disadvantage of the formula, as well as its advantages, is simplicity. As a result, the BMI of a muscular athlete may coincide with that of an obese untrained person. Given the same height and weight, body fat percentage, appearance, and therefore health risks can vary considerably. Studies of hundreds of people have shown that athletes were often overweight, and women who were clearly overweight were within the normal range.

Similar information was shown by another study of 13 thousand people. Using bioimpedance analysis, the scientists compared BMI with real body fat percentage. The index showed obesity in 21% of men and 31% of women, while a more accurate scientific analysis – in 50% of men and 60% of women. We can say that in about every second case, the body mass index gives the wrong information, calming an overweight person.

2. BMI does not take into account gender and age

For large-scale research, the index frames were deliberately made universal. But here the volumes of fat in men and women differ by about 10%. Is it correct to apply the same criteria for different genders?

Age changes the proportions of muscle and adipose tissue in the body. Over time, metabolism slows down, muscle tissue begins to break down, and fatty tissue begins to accumulate. Correct conclusions require taking into account both the sex of the person and his age. According to statistics, BMI in men is higher than in women.

3. BMI does not take into account the three-dimensionality of a person

Oxford professor Nick Trefenten also questioned the capabilities of the BMI formula. According to the scientist, it does not take into account the real features of the structure of the human body. In it, height and weight do not change linearly. As a result, the formula considers short people more slender, and tall people more dense. Trefenten adjusted the formula so that it gives the correct results:

BMI = 1.3 × weight / height^2.5,

where body weight is measured in kilograms and height in meters.

Nevertheless, the creator of the formula himself considers it imperfect, like any in general – the human body has a too complex structure and shape.

4. Change in BMI rate

Over the past 30 years, the “normal” body mass index has changed several times. If before 1998 in America the threshold was 27.8 kg / m2, then after 1998 doctors began to consider 25 kg / m2 as such. A small change in the standard led to the fact that immediately 29 million Americans were considered to be overweight.

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Body Mass Index Alternatives

BMI is calculated to identify health risks. However, some researchers believe that it is much better to use measurements of waist circumference or waist-to-hip ratio. Fat collected around the liver and abdominal organs is considered the most dangerous. He has a high metabolic activity. This substance produces fatty acids, hormones, inflammatory agents, which increases the level of lean cholesterol, blood glucose, and blood pressure.

American studies involving 44 thousand women have shown that there is a direct connection between waist circumference and various diseases. Even if the BMI is within normal limits, and the waist circumference is above 89 centimeters, the risk of death from heart disease is three times higher than that of women with normal, lower indicators.

Similar data were obtained in Shanghai – excess fat in the abdomen increases the risk of death, regardless of the BMI index. The International Diabetes Federation considers a normal waist for women up to 80 centimeters, and for men – up to 94 centimeters. According to the WHO, exceeding this norm leads to the emergence of risks of cardiovascular diseases, type 2 diabetes and hypertension. If the waist is more than 88 centimeters for women and over 102 centimeters for men, the risks become even more significant.

Other indices are used to determine normal body weight: Brock, Breitman, Noorden, Tatonya, Bernhard, Davenport. Basically, they are based on all the same height and weight data.

See also:

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Face swap, gender change, hairstyles, makeup, body shaping, effects and masks on photos and videos for iPhone – 20 best apps

Instagram (effects and masks)

Vkontakte (effects and masks by category)

Snapchat (age, gender reassignment, effects and masks)

FaceApp (age, hairstyles, gender reassignment, smiles)

Apps from ModiFace (change hair color, eyes and makeup)

Kirakira + (glitter animation)

Meitu (correction of the figure and shape of the face, skin color, removal of spots and scars + effects and filters)

YouCam Makeup (selection of cosmetics, hair color change + effects)

Face & Shape Photo Editor Lite (Face Shape & Shape Correction)

Fabby Look (hair color change)

Perfect 365 (face shape correction, make-up)

Wanna Nails (nail polish selection)

Photo Editor Effects Color Pop (change the color of some elements in the photo)

B612 – Beauty & Filter Camera (photo enhancement + effects and masks)

Cymera (body shaping, photo retouching + masks, selfie effects and filters)

MomentCam (turns photos into cartoons and stickers)

Bestie (Selfie Camera, Retouch and Face Correction + Effects)

Zombify (makes zombie faces)

Face Swap Live

Cartoon Face (creates facial animation)

Face swap (substitutes face in templates)

OldBooth (substitutes face in retro templates)

What is Body Mass Index?

Who came up with the idea of ​​calculating the body mass index?

Why do you need to know the body mass index?

The accuracy of BMI-based predictions

Body Mass Index Alternatives

Who came up with the idea of calculating the body mass index?