Colourless interval (English interval from armor. intervallum, inter – between, vallus – a ditch; synonyms: a photochromatic interval, an achromatic interval) – the relation of values of thresholds tsveto-and photoperceptions, expressed as a difference of their logarithms.
Even if heart of the person does not fight, then he all the same can live during a long period, as the Norwegian fisherman Jan Revsdal showed us. Its "motor" stopped for 4 hours after the fisherman got lost and fell asleep in snow.
Statistically, in Russia about 34% of citizens smoke. Most of consumers of tobacco has problems about health sooner or later...
Section: Articles about healthEach of us repeatedly noticed that the people having the same passport age are sometimes not similar on one-years at all. One at the age of 40-45 years already looks almost an old man, and another and in 60 is young, vigorous and full of life. The matter is that state нашег...
Section: Articles about healthAging — natural and inevitable process. Over time our skin loses elasticity, on it saggings are formed, the face form loses former clearness. The procedure of nitevy lifting (nitevy tightening) can successfully solve this problem. In order that it is better to get acquainted with this popular procedure, we will tell you 6 cognitive facts about it....
Section: Articles about healthChildbirth is the most important event in life of each woman. We are women we give birth to the new little man on this light. Now...
Section: Articles about healthAbout influence of fasting days on an organism it is told much – both about advantages, and about shortcomings. It is considered that fasting day in the form of a short-term monodiet is useful, promoting effective removal of slags from an organism whereas irregular, it is excessive п...
Section: Articles about healthOn the head of the person about one million hair follicles, or as they are called still, hair bulbs are located. At the time of the birth most of them is in the "sleeping" state, but within several weeks follicles become more active, and from them hair begin to grow. Intensity of this process is individual, and during life it can change. Genetic predisposition, a physical and emotional state, aggressive influence affects the growth rate of hair out of...
Section: Articles about healthThe winter swimming in open reservoirs called in our country by "winter swimming" – officially recognized sport and one of the ek...
Section: Articles about healthTuberculosis – a serious infectious disease which development is caused by mycobacteria (Koch's bacilli). The illness is known from an extreme antiquity. Long time fight against it was considered as ineffective. Quite often the disease affected the whole families, and mortality from it was very much...
Section: Articles about healthRadiological methods of a research are applied in medicine more than hundred years, and thanks to them millions of lives were saved. In many cases without X-ray it is impossible to make exact idea of a condition of bodies and fabrics, it is correct to make the diagnosis. Nevertheless, many myths about researches such continue to exist. Let's consider the most widespread of them....
Section: Articles about healthThe brain of the person is studied not one hundred years, but the quantity of the riddles connected with this body increases rather, than reducing...
Section: Articles about healthAll parents are ready to what the baby often and pisat much. Since then, as the absorbing diapers strongly became current, keeping of the kid in dryness does not represent any problems. But if the grown-up kid continues to urinate in panties, parents of a nacha...
Section: Articles about healthAccording to data of World Health Organization, the cataract is diagnosed almost for 7% of the population of Earth. The statistics of incidence is considered not full as at an initial stage the illness, as a rule, does not cause to the person of special inconveniences, and many diseased sees doctors not at once. The cataract is not only one of the most widespread ophthalmologic illnesses, but also the reason of a half of cases of loss of sight....
Section: Articles about healthDuring foot walks blood moves on vessels more actively and one and all bodies are supplied with a large amount of oxygen. N...
Section: SlideshowEach person supports all life a SARS about 200 times. The peak of incidence falls on cold season, but it is possible to get sick with a temperature and a pharyngalgia, and sometimes and very possibly, even during a heat. The reasons for development of catarrhal diseases exists множество:...
Section: Articles about healthCellulitis - very widespread cosmetic shortcoming which arises approximately at 80% of women sooner or later. Emergence it is connected with change of structure of a hypodermic fatty layer. At the same time on the surface of skin at first there are roughnesses (cambers and cavities), and then small consolidations, the so-called effect of an orange-peel is shown. Changes in a condition of hypodermic cellulose are a consequence of a hormonal imbalance in an organism....
Section: Articles about healthSmall appetite at the child – the complaint which pediatricians should hear practically from each mother. Most often it is carried to разр...
Section: Articles about healthLife expectancy in various regions of Earth is not identical. Social stability, economic wellbeing, availability and level of medical care, household comfort, literacy of the population in the field of observance sanitary гигиен exert impact on it...
Section: Articles about healthScientists have no unambiguous opinion on a proximate cause of emergence of a carcinoma cutaneum today. Only the factors promoting development of this illness are precisely established. Treat them: long impact on skin of ultraviolet rays, radiation exposure, thermal injuries, injuries of skin by aggressive chemicals (pitches, acids, alkalis, etc.), genetic predisposition (existence of malignant new growths of skin in the family anamnesis), at...
Section: Articles about healthHerpes simplex of the first type (the infectious disease which is shown periodic bubble rashes on is called...
Section: Articles about healthDoctors claim that the people not so familiar with a dorsodynia occur among adult Russians very seldom. At the same time the vast majority of the patients who are periodically testing this indisposition do not hurry to ask for medical care at all. With one St...
Section: Articles about healthIt is possible to find the extensive range of fruit and vegetables in modern shops. Russians already got used that on counters there is not only a seasonal domestic production, but the vegetables and fruit which are grown up in the countries with more comfortable conditions of cultivation at all seasons of the year. However what we see in shops and in the vegetable markets, is only a small part of those edible plants with which the nature is so rich. Today we want to acquaint the reader with rare and very useful vegetables which on...
Section: Articles about healthThe dietology, as well as other sciences, does not stand still. Food stuffs are exposed to comprehensive study, and scientists receive new and...
Section: Articles about healthThe technique of acupuncture (acupuncture) is used in the medical purposes more than three and a half millennia. It is eurysynusic and recognized as official medicine in the majority of the developed countries of the world. Influence by fine needles on so-called points...
Section: Articles about healthThe drugs stopping or oppressing life activity of pathogenic microorganisms are widely applied in clinical practice from 40th years of the last century. Originally antibiotics were called only substances natural (animal, vegetable or microbic) origins, but over time this concept extended, and it includes also semi-synthetic and completely artificial antibacterial drugs....
Section: Articles about healthThe climax, or menopause is the normal process of the termination of genital function of the woman which is followed serious hormonal...
Section: Articles about healthThe phenomenon of improvement of a condition of the patients at administration of drugs who are not containing active agents, so-called effect of placebo is known long ago. At the end of the 18th century the American doctor Perkins began to treat people the "miracle" sticks made of a spl...
Section: Articles about healthPartial and the more so full loss of hearing significantly reduces quality of life. Difficulties with communication lead to loneliness and isolation. The person who badly hears experiences difficulties with social and professional implementation, quite often has problems in private life....
Section: Articles about health