Whether it is necessary to be afraid of the sun?“ Due to the thinning of an ozone layer and the increased popularity of suntan danger of an adverse effect on the person of ultra-violet radiation increased. This problem causes general concern “ (LI CHONG - VUK, the FORMER CEO of WORLD HEALTH ORGANIZATION). MARTINE`S
, the white-skinned man from Northern Europe, sunbathing on the beach in Italy, fell asleep in an umbrella shadow. Having woken up, he found out that the shadow moved also legs of steel at it puntsovo - red. He tells: “ It was necessary even to go to hospital. Legs were not bent, swelled up and became as two sausages. Several days I suffered from severe pain: could not neither stand, nor bend legs. Skin so stretched that, appear, here - here will burst “.
Occurs the myth that only white-skinned people need to be afraid of the sun. However, though the probability to burn at swarty people is less, they have a skin cancer too. In this case the problem often is found only at late stages. Long stay on the sun causes also damage of eyes and immune system that is shown often only years later.
The closer to the equator, the is higher intensity of ultra-violet radiation. Therefore inhabitants of tropics and subtropics, and also tourists need to take special precautionary measures - especially as in recent years the ozone layer considerably became thinner. In what potential danger of long stay on the sun?
Danger to eyes
Around the world about 15 million people lost sight as a result of a cataract - the main reason of a blindness. The cataract is characterized by cataract from - for biochemical violations which arise in connection with damage of its fibers. This damage is shown not at once and results from long influence of an ultraviolet. It is counted that the main, and also approximately in 20 percent of cases is the secondary reason of a cataract continuous stay on the sun.
Unfortunately, near the equator - in the raised risk zone - most of people live in poverty and are not able to afford cataract surgery. Therefore in Africa, Asia, the Central and South America millions of people grow blind.
Danger to skin
One third of all oncological diseases in the world is a cancer of skin. Every year about 130 000 new cases of a melanoma (the most dangerous form of cancer of skin) and about 2-3 million other types of cancer of skin, for example a bazalioma and ploskokletochny cancer are registered. Statistically, every year about 66 000 people die from cancer skin.
As sunlight harms skin? One of the most widespread damages is a solar burn, or an eritem. Its painful manifestations are observed within several days and can be followed by bubbles and flaking of epidermis (a skin blanket).
At a solar burn strikes an ultraviolet bo ́ lshy part of cells of epidermis and other layers of skin. If under the influence of the sun skin changed the color, it is a sign that harm is done to it. When in DNA the genes operating growth and cell fission of skin are damaged there can be cancer. Sunlight damages structure of skin and weakens its elasticity. It conducts to premature wrinkles, an obvislost of skin and fast emergence of bruises.
Danger to immunity
of Research showed that at long influence of ultra-violet radiation some mechanisms of immune system are broken. It reduces ability of an organism to resist diseases. It is known that even moderate doses of sunlight increase risk of bacterial, fungal, parasitic and virus infection. Many noticed that from - for the sun they on skin have a rash known as simple herpes. According to the World Health Organization (WHO), ultra-violet radiation in the range of B (UVB), “ most likely, reduces function of immune system - and she cannot keep a herpes virus under control any more, and it leads to recurrence “.
As for oncological diseases, sunlight strikes to the person double blow: damages directly DNA and reduces natural ability of an organism to eliminate the done harm.
Therefore would be reasonable not to remain on the sun too long. Our health and even life depends on it.
AS ITSELF to PROTECT
▪ Limit stay on the sun during the period from 10:00 till 16:00 when ultra-violet radiation especially strong.
▪ Try to be in a shadow.
▪ Cover hands and legs with dense, free clothes.
▪ Put on a wide-brimmed hat to protect eyes, ears, a face and a neck.
▪ You Wear the qualitative dark glasses protecting the lateral review. They almost for 100 percent will save eyes from an ultraviolet (UVA and UVB).
▪ Each two hours plentifully you apply on skin sunblock cream of a broad spectrum of activity with protection coefficient not less than 15.
▪ As in lamps for suntan and sunbeds ultra-violet radiation is used, WHO recommends not to use them.
▪ Especially try to protect from the sun of small children whose skin very gentle.
▪ Never you sleep on the sun.
▪ If you had a suspicious birthmark or a spot, see a doctor.