Magic optical illusions broke society into two groups during the 1990s - those who could see hidden images and those who could not. These bitmaps, known as autostereograms, create a three-dimensional image when the viewer looks in a certain way at a two-dimensional pattern. The magic of 25 years. Although the mysteries of optical illusion were confusing about 25 years ago, this idea has long been used by researchers to study the perception of vision.
Category Health information
Phagocytes are a unique group of cells in the human body. They are simultaneously part of the immune and circulatory systems, as well as connective tissue. Their main task is to protect the body from dead cells, infections and other pathogens. And for this they use a unique function unique to them.
The results of scientific studies indicate that approximately 10% of the world's population suffers from insomnia, and a huge number of people claim that they can not sleep without a TV. Nevertheless, scientists argue that the TV, smartphone and computer do not contribute to sleep. Quite the contrary - the blue light emitted by the screens destroys the sleep hormone in our bodies.
Allergy is an increased sensitivity of the body to certain allergenic substances. It can manifest itself in different ways and it can also be caused by different factors. For example, respiratory, or respiratory allergy, is expressed by sneezing, runny nose, itching in the nose, conjunctivitis. It is caused by aeroallergens: pollen, mold, dust mites, particles of animal skin.
In a 2007 report, the World Health Organization warned: the number of diseases dangerous to humanity is growing rapidly. Only new infectious diseases between the 1970s and 2007, more than 40 were discovered. Since then, the trend has not only persisted, but has increased even more in pace.
What associations does the phrase "healthy eating" usually cause? As a rule, the majority recalls a balanced diet, fresh fruits and vegetables, organic products that do not have chemical additives. And it would seem that to maintain good health, you need to eat just such food. But what if we say that sometimes even such seemingly ideal food for the human body can cause a health disorder?
Not only eaten garlic or uncleaned teeth can cause bad breath. Many diseases also have their own characteristic aroma. The fact that some ailments can be recognized by stench was known by Hippocrates. For example, in liver diseases, a specific sweetish sugary smell of urea is felt.
Human immunity is a complex multi-stage system for protecting the body from harmful external influences (viruses, bacteria, allergens, fungi). There is no single organ responsible for immune defense. This function is assigned to different systems: from the intestine to the microscopic protein substances - immunoglobulins.
A person is constantly confronted with bacteria. They are everywhere: around us, on us, inside us. After many years of scientific research, mankind has learned well the relationship between bacteria and disease. And I must say, for fear of health in contact with many microbes, there are reasons. Plague, rheumatism, whooping cough, anthrax, Lyme disease and many other dangerous diseases begin due to the entry of bacteria.
The list of the most frequent diseases that occur in the warm season, usually leading intestinal infections. This is a group of infectious diseases that cause disturbances in the work of the digestive system. Let's understand what intestinal infections are, how dangerous it is, why they arise and how to protect against them.
Our metabolism is based on complex biochemical processes during which various enzymes inside the body break down food into proteins, fats and carbohydrates. For the optimal functioning of these enzymes, extracellular fluid is needed in which they "live." And this fluid must be balanced.
The human body regularly needs food, which serves as a source of energy for it. Therefore, it is quite normal to feel hunger a few hours after the meal. But if the stomach reminds of itself with a hungry rumble very often, and hunger does not go away even after eating food, it means that something is wrong with the body.
In order for a person to feel healthy, an optimal water-salt balance must be maintained in his body. Salts in our bodies are, above all, a source of electrolytes (minerals contained in the blood and carrying a certain charge). Many functions of the body depend on them, including the ability of the central nervous system to transmit impulses.
From time to time, everyone can feel cold feet. But there are people whose feet remain cold almost always, even in 30-degree heat. Why are my feet freezing and is it dangerous? Causes of Cold Feet Lowering Air Temperature When a person is cold, his legs tend to also become cold. This is a normal reaction of the body to a decrease in air temperature.
The practice of cleansing the intestines goes back to the era of ancient Greece. In modern times, this procedure became popular in the early 1990s. Then the theory was very popular that cleansing the intestines helps to treat almost all diseases, prevents the emergence of new ailments, and also slows down the aging of the body.
The gallbladder is a small organ in the human body, but it plays a very important role - it takes part in the collection of bile, which is necessary for the digestion of food. Its main function is to store the bile produced by the liver. But sometimes it happens that the work of this body fails. Many believe that in this case it is necessary to clean the bubble.
Scientists still argue about what can cause itching, how this sensation arises and what can be provoked. However, it is no secret that the study of this issue can shed light on many secrets of the human brain. Today we have compiled for you some interesting facts that will surely puzzle you: The average person itches about ninety-seven times a day.
Golden autumn is a great time to fully enjoy the last warm days. But, unfortunately, the transition from the summer heat to autumnal cold and rain is not always gradual. And if the weather conditions change very dramatically, in terms of well-being for many people this does not go unnoticed. In the autumn, many diseases are exacerbated: from asthma and peptic ulcer disease to rheumatism.
As a rule, the person is engaged in mental work sitting. We sit at school and in universities, when we study, when we work on projects and even crossword puzzles are solved sitting. Nevertheless, scientists recently found confirmation that prolonged sitting causes impaired blood circulation in the brain, which has a very negative impact on his work.
It is said that all the most beautiful and sad works of art were created in the fall and the depression is to blame for this, which at that time covers quite a large part of the world's population.What is autumn depression? Is there such a diagnosis in medicine or lovers of chanting have come up with it themselves to somehow justify their penchant for pessimism?
During the day, most people lose about 800-1000 ml of liquid afterwards. Sometimes this amount increases to 3 liters, and in extreme conditions the human body can produce about 10 liters. sweat. Sweating is a natural process by which thermoregulation occurs.By the way, male organisms are characterized by a lower thermal threshold, therefore, compared with women, the stronger sex sweats more strongly.