The safe computer for health
Simultaneously with a wide circulation of computers, there were conversations about небезопасности such technicians for health of the person. As it usually happens, the information part was far from the truth are there were myths about harm of the computer, invented by their ardent opponents. But the smoke without fire, as it is known, does not happen, therefore this article we will try to understand that in the history about influence of the computer on a human body the truth, and that at its finest fiction.
Today from numerous sources among which in newspapers and magazines, subject programs on TV or stories of acquaintances, it is possible to learn articles that a concentration of computer harm from the point of view of negative influence on health of the user is the monitor. The matter is that the computer monitor is characterised by especially high level of electromagnetic radiation in an operating time. Such radiation to a greater or lesser extent is peculiar to all without an exception to household appliances: to refrigerators, microwaves, toasters, but for monitors its value is especially high. Experts have not come till now to uniform, scientifically well-founded decision on harm of electromagnetic radiation of normal level for health of the person. Despite it many users are inclined to consider its dangerous. The reason, most likely, is concluded in the term "radiation" which at people at subconscious level associates with X-rays and radiation. Let's notice that electromagnetic radiation has absolutely no anything the general with x-ray, besides, is substantially reflected by glass of a cathode-ray tube in the display. We will sum up: negativity of influence of electromagnetic radiation of the computer monitor on a human body is not proved yet but as theoretically such possibility nevertheless exists, users should limit time of the work for the personal computer reasonable limits. Besides, it is possible to recommend following safety measures: whenever possible the monitor needs to be established in a corner of a premise or about a wall, in breaks between its sessions it is necessary to disconnect, in an operating time behind the computer the monitor should be from the user on distance, at least, 70 sm, pregnant women and children cannot spend behind the computer more a pair of clocks in day. Some manufacturers have adjusted release of special filters which as have shown tests, considerably reduce a magnetic field created by the monitor.
The following aspect of influence of the computer on health of the person, unlike the first, obviously is not invented or disputable. It is a question of the deterioration of sight caused by long work behind the monitor. As it is known, eye muscles strongly get tired from enduring вглядывания in a certain subject (for example, at book reading), but this fatigue becomes where more intensively if this subject represents the device of high brightness, that is the TV or the computer monitor. In especial degree this problem is important for children as their eye muscles have not got stronger yet. As a result the hobby computer games or the Internet can turn back serious pressure of eyes, irritability of the child, and also development of visual deficiencies to such degree that their correction becomes a necessary measure.
There are some effective ways which can reduce to a minimum risk of occurrence of problems with sight in the course of work behind the computer. First, choosing a personal computer configuration, at all it is not necessary to save on the monitor is there should be a display with as much as possible high permission and the same clearness. Further, behind the computer it is necessary to limit or do an operating time in intervals between sessions of a pause for rest. Thirdly, to help to lower loading on eyes the gymnastics developed by experts which needs to be spent in the end of each business hour behind the monitor will allow. Besides, it is necessary to take measures to minimise reflexion from the monitor - are with that end in view used special антибликовые screens. Experts advise to switch off the top illumination and densely to draw curtains indoors where there is a monitor.
There is an opinion that work behind the computer ostensibly provokes the diseases connected with muscles and joints. To some extent this statement is really similar to the truth, but only only when it is a question of the people which work is directly connected with the computer. The most hazardous gamers or taking a great interest the Internet серферы nevertheless do not spend so much time that they had such problems with health behind car. If the person daily spends the most part of day and even night behind the computer it can have unpleasant painful sensations in shoulders, or покалывание in finitenesses or so-called онемение necks. In exceptional cases can develop кистевой the tunnel syndrome connected by that from frequent and long work for the personal computer nerves of hands are damaged. To struggle with the listed problems it is possible, developing a correct bearing and using as much as possible comfortable armchair.
So, extended sessions on time behind the computer be valid can hazardous to health of users. Degree of negative influence of computer technics on a human body to estimate difficultly as active use of the such equipment by a wide range of consumers has begun all a little tens years ago and the objective scientific data on this theme while is not present. In any case, observance of measures of reasonable precaution will allow to minimise risk of occurrence of those or other diseases and to make interaction of the user with the computer extremely comfortable and safe.
