Let's be honest, most of us the bulk of the time in front of screens of smartphones, computers or TV receivers. This circumstance is not the best way affects the overall health and the health of our eyes in particular. But much of what we know about the harm of TV, is a delusion or remnants. For example, many people, especially grandmothers, still wary of the harmful electromagnetic interference TV receiver on the body that already can not be true.
Indeed, the operation of the old models of CRT TVs present a significant magnetic field around the device. But the harm from it is not scientifically proven. Modern television sets are no longer used cathode-ray tubes, and, consequently, no significant magnetic fields around can not be in principle.
How to watch TV
The content of the article
- How to watch TV
- Is it harmful to watch TV in the dark
How can enjoy your favorite TV programs and does not harm your health? The main load while watching TV falls on the eyes, neck, back and nervous system. To maintain health while viewing, follow these simple rules:
- do not sit in front of the screen at a distance of less than 2.5 meters;
- when watching sit up straight, keep your posture;
- if there is no need to create an intimate environment, ensure adequate lighting in the room - it will significantly reduce the burden on the eyes;
- every 20 minutes, his eyes fixed on the screen, at least half a minute (at this time look out the window, looking around the room, around or just close your eyes and relax);
- Do not eat while watching programs, and you will never lose weight for the summer;
- Limit viewing time up to 4 hours per day for adults and 40 minutes for children;
- try not to watch TV at least an hour before bedtime and generally give up at this time of the gadget - it will significantly improve the quality of sleep.
Is it harmful to watch TV in the dark
Anyone who has ever watched TV for a long time in the dark, will confirm that the viewing of such conditions has increased the burden on the eyes and the whole body generally. On this subject a lot of research has been conducted - test after watching in the dark more often complained of eye strain, fatigue and drowsiness, impair focusing view. However, none of these changes is not a long-term and is not harmful to health - at least, so says modern science.
This is due to the fact that the frequent changes of the brightness of the TV picture in a dark room makes our eyes constantly adjust. In the dark, the pupil dilates, the light, on the contrary, narrows - due to the high dynamics of the television picture, we get constant change of pupil size, the result - watery red eyes after prolonged watching your favorite movies and TV shows darkness.
Eye fatigue from viewing in the dark can be significantly reduced, reducing the contrast between the screen and the surrounding environment: adjusting the brightness of the TV picture or using off-screen backlight provided in some modern models televisions.
Reference! In my TV receiver can be turned on very convenient automatic mode change screen brightness depending on the light conditions. This mode allows you to obtain an optimal image brightness, minimum load on the eye in daylight and in darkness. Check the instructions to your device - is sure there will many, such a regime, but about it, few people know, because it is not enabled by default.
Eye fatigue after extended viewing television in the dark there, but if it leads to vision loss? Many experts say that after a full sleep is no longer possible to detect the negative consequences for the eyes nightly gatherings in front of the TV without light.
We wish you to protect your vision, avoid long night movie marathon in the dark or at least do not forget to do them short breaks not only to eat.
