– darkening of human skin under the influence of ultraviolet irradiation, due to which the pigment melanin is excessively deposited in the superficial layers. Tan develops gradually after repeated exposures of low intensity.
The most intense and persistent tanning occurs after prolonged exposure to the sun, which is often harmful to the health (nervous, cardiovascular, etc.). The degree and speed of the appearance of sunburn are not indicators of health.
In different people, the sensitivity to ultraviolet irradiation, especially in children, is different. Brunettes with a swarthy skin tan faster than blondes and redheads with a delicate, delicate skin, which burns the skin with ultraviolet rays.
Smearing the skin with vegetable oils (walnut, peach, etc.) to quickly get a tanning prevents it from drying out and to some extent from burns.
The presence of a tan on the body makes it more beautiful, healthy, pimples disappear.
Most of us know how unsafe the ultraviolet, but still want to look good thanks to sunburn. If you devote to sunbathing under the sun or in a solarium for a long time it will turn into not very good consequences for you. The skin will age faster, new wrinkles will appear, collagen will break down, the skin will lose its moisture and lose its former tone. But all this can be avoided if you correctly pick up sunscreen, buy quality glasses, do not forget about Panama or a cap with a large visor.
If you use sunscreen, sunburn is safe.
When the skin tans, there are special changes in it. Any sunburn is unsafe. Sunscreen should protect against UV rays of types A and B and have a degree of protection SPF not less than 15 (not less than 30 for people who had previously suffered skin cancer). Apply the cream about an hour before going out, then every two hours (more often if you bathe in a pond).
Protective cream saves from skin cancer.
The claim that a powerful sunblock is all that is needed for full protection from the sun is a myth. So, a level 30 cream will provide sufficient protection, however only from one type of rays – UVB (short ultraviolet rays causing burns). But there are other rays – UVA, they penetrate deeper under the skin. And lead to the formation of wrinkles, and can also cause cancer. Many manufacturers claim that their creams are protected from both UVB and UVA. But the WHO report calls into question this thesis: “Because of the absence of clear criteria for assessing the effectiveness, it is not yet possible to test the effects of UVA rays …”.
SPF, which is indicated on the sunscreen, shows the degree of protection of your skin.
Solar radiation is of two types: UVB, which is responsible for sunburn and burns, and UBA, which responds to aging of the skin. The specified SPF index is responsible only for UBV radiation. To protect the skin from direct sunlight, it is better to purchase a cream that will contain components that block UVA radiation.
You need to use sunscreen every day.
The sunscreen should be applied every time you have to spend more than 10-15 minutes outdoors. The sun acts on you even when you drive or sit in a room near the window. Creams with moisturizing ingredients or a spray agent are more convenient to use. Ultraviolet rays penetrate the clouds, so sunscreens are also needed in winter and on cloudy days.
Moisturizing and sunscreen should be used in the complex.
Apply two creams at once – too much, since the composition of sunscreen already includes moisturizing ingredients. If you have a normal or oily skin type, it is recommended to use either a sunscreen or tonic for the face. With dry skin, first apply moisturizer, give him time to digest, and then apply sunscreen.It is advisable to use sunscreen in any weather, since the sun always shines, even on the darkest day.
In addition to sunscreen, you need to use other measures of sun protection.
Sunscreen is useful to combine with wearing a hat or umbrella. The sun is especially aggressive from 10 to 16 hours, so try to be in those hours in the shade.
Solar baths cause eye diseases.
This is indeed so. The sun in large doses extremely negatively affects the retina of the eye. That is why in the sun the person screw up his eyes – this is the reflex elaborated by millennia of evolution. Use quality sunglasses and wide-brimmed hats during sunbathing.
Umbrellas save from burning.
Unfortunately, this is not the case. Umbrellas like the shadow of the rare palm trees on the beach do not give enough protection – scattered ultraviolet will reach you and in the shade of a beach umbrella. Do not rely on an umbrella. Look at the clock and use protective equipment.
People with dark skin are protected from the harmful effects of the sun.
It’s not true. The skin of swarthy people can also sunbathe and burn, they too can develop skin cancer.
Sunbathing is necessary, since vitamin D is produced in the body.
To get an adequate dose of vitamin D, just twice a week, spend 15 minutes outdoors with an open face and hands. Vitamin D is found in multivitamins, milk and other foods.
It can be sunburned before the redness of the skin and only then hide in the shade.
In fact, even though the sunburn is a kind of alarm, but it works after five hours after the “hacking.” By this time, the skin cells had been damaged for a long time. Therefore, you need to hide in the shadow before the skin turns red.
If you have more carrots, you can quickly tan.
Carrots have no effect on skin color (which, of course, does not mean that it is useless: rich in beta-carotene, it is an excellent antioxidant and slows down the aging process).
Excessive sunbathing leads to early skin aging.
To sozheleniyu this is true. You can see this if you compare the condition of the skin on open areas (face and hands) with the skin in areas covered by clothing.
Women can not sunbathe “topless”.
Contrary to popular belief, sunlight does not have any direct effect on breast tissue. The only danger is sunburn of the nipples and areola (nasal field), which can lead to peeling of the nipple’s skin, cracking the nipple, causing furuncles of the skin and even inflammatory changes in the mammary gland. Burns of nipples are also frequent because with sunburn “topless” nipples for obvious reasons are often outside the shadows.
Sunburn tan disappears after going to a sauna or a sauna.
This is one of the common misconceptions. Purely visually the human skin after washing looks more light. This can create the illusion that the tan is partially gone. In addition, if washing in the sauna or in a regular steam room you rubbed the skin with a washcloth rather intensely, it is possible to peel the superficial epidermis (insignificant), which may be accompanied by exfoliating skin areas, if you were intensely sunburned and slightly burnt in the sun. If the darkened shreds of skin have peeled off, then the skin beneath them will naturally be brighter. it is not tanned. A true tan is a pigment inside the skin and no sauna can remove it. Think about it, because the tattoo is also a pigment inside the skin (although unlike tanning, artificial origin). If the sauna were able to reduce sunburn, then it could reduce tattoos, but this does not happen.
Sunbathing in the North is safer than in the South?
This is a common misconception. Quite the contrary. In the spectrum of sunlight there are two frequency types of ultraviolet, the so-called UV-A and UV-B.In this case, UV-A – is longer, less energy waves, which lead to the so-called “fast” tan. Dosing UV-A irradiation is very difficult or impossible. To get a tan with UV-A rays, you need to get a much higher dose than with a similar UV-B tan. As the latitude increases in solar radiation, the proportion of UV-B rays increases, so there are more UV-A rays in the north. Therefore, in order to get a similar to the southern tan of “northern bottling” you need several times longer to lie on the beach and, accordingly, get a large dose of UV-A beams, which is likely to result in a sunburn. In addition, UV-B produces vitamin D3, which has a protective effect not only on the skin, but also on the mammary gland.