CROUCHING TIGER;311379 wrote:
MORE RADIATION DANGER...Watch out and keep that body healthy and fit even "on the beach":)
SUN TANNING


Tanning is nothing more than the efficient, protective mechanism of the body: a response to injury from sunlight and a way to protect us from additional injury. That “healthy-looking” tan, usually associated with good health and enviable sex appeal, is, in fact, damaged skin. The best suntan is no suntan at all!
In early times, sun-tanned skin was associated with those who worked outdoors for a living – the peasants, the farmers, the serfs. People of means, those from the upper social classes and nobility, took pains to stay of the sun to preserve their natural color. Medieval beauties were admired for their indoor pallor, while the traditional fresh fairness of Englishwomen, a combination of genes, high humidity, and minimum sunlight, has been extolled by lovers and envied by other women.
Because the tanning mechanism is not 100 percent efficient, repeated sun exposure allows certain wavelengths of light to penetrate this defense barrier, causing the various sun-related skin conditions.
The more subtle changes caused by the sun’s rays may not be apparent for decades, but they do and will occur in every person who is foolish enough to expose himself or herself to excess. Therefore, the only good suntan is no suntan at all.
Compare the sun-exposed portions of your body – your face, hands, forearms – with those parts of your anatomy (your buttocks, for example) that are almost never exposed. Note the difference in smoothness and texture. Your buttocks are young; your hands and face are old. (Everyone should look at his or her buttocks in the mirror and think: This is how my face should look!)



For you fair-haired, fair-skinned, and blue-eyed people, tanning, if it does occur, is a slow process. You have much smaller pigment cells than your dark-haired, darker-skinned, brown-eyed neighbors. So you burn more easily and require infinitely more sun exposure to produce even a modest tan. If you are dark-skinned, on the other hand, merely a brief exposure to the sun often produces a lasting tan.
For you light-skinned people who, despite all admonition, still desire that bronzed look, here are a few rules:
- Acquire your tan gradually. If you head for the beaches, the backyards, and the lake in order to soak up that first Sunday sun in June, avoid a severe and painful sunburn by limiting your first exposure to fifteen or twenty minutes. Increase the exposure gradually by twenty or thirty minutes a day for four or five more days. The first pigment cells will then begin to show up to darken and protect the skin. From then on, you can tolerate almost any length of exposure.
- If you are a redhead or a blond, you do not have adequate pigment cells to begin with; therefore, you must be more careful and reduce the early exposure times by approximately half.
All this, however, is trial and error. Only you will know how much sun you can tolerate on first and subsequent exposures without causing painful sunburn.
- Keep in mind that the most intense rays of the sun occur between 10 A.M. and 2 P.M. (standard time), the overhead sun being the strongest. You cannot get sunburned before 9 A.M. and after 5 P.M., at which times the sharply angulated “burn” rays have been filtered out by the atmosphere.
- Also, do not let overcast skies fool you: sunburn can occur on hazy and foggy days. And don’t think that only direct exposure to the sun produces burning or tanning. Reflected rays from sand, cement, and water can also cause severe sunburn. Beach umbrellas do not offer absolute protection. And you can even get sunburned while swimming under water!
- Use suntan creams and lotions. Many of the suntan preparations – creams, lotions, ointments, gels, sticks, lip balms, etc. – contain specific chemicals that either block out or selectively absorb the shorter wavelengths of sunlight that are responsible for burning. This may permit some of the longer wavelengths of light – the tanning rays – to penetrate the skin. Sunscreens should be applied about 30 minutes before going outdoors.
People are classified into various skin types depending on their levels of melanin pigmentation. The simplest classification – the one I prefer – is as follows:
- Skin Type I: People with fair hair and fair skin or freckles are most susceptible to the rays of the sun. They can develop severe sunburn in a matter of minutes and also have a higher risk of developing skin cancers and wrinkles. If you are Skin Type I, you will not tan no matter how long you bake in the sun. Persistent sunbathing is not only futile, but also downright dangerous.
- Skin Type II: These people are also fair-skinned but not as sensitive to the sun’s rays as those of Type I. They usually burn and only occasionally develop a “weak” tan.
- Skin Type III: This type includes people with darker skin who usually tan but sometimes burn.
- Skin Type IV: These people always tan well and almost never develop sunburn.
Depending upon the type of skin you have, there is a wide range of sunscreen products that are rated according to the degree of protection they can give against ultraviolet radiation. This rating is called the Sun Protection Factor (SPF).
This SPF is a guide and a numbering system to assess the efficacy of sunscreen agents. The number represents the number of times longer you can stay in the sun if you use the product than if you used nothing. A number 15, for example, will provide 15 times the user’s natural skin protection. In other words, let us say you are susceptible to developing mild sunburn after being out in the sun for one hour. If you apply an SPF-15 sunscreen before sunbathing, you will be able to lie out in the sun for 15 hours before developing your mild burn. (Who is going to lie out in the sun for 15 hours at a stretch? Where on this earth can anyone do that?) And you will see all kinds of SPF numbers ranging from 2 to 50!
I believe everyone – every skin type – should use an SPF-15 sunscreen. As far as I am concerned, the numbers higher than 15 are meaningless. An SPF-15 sunscreen will filter out 93 percent of the harmful UVB rays. Isn’t that enough for most individuals? When using any sun-protection product, follow the directions given by the manufacturer, and reapply it every two or three hours. Always reapply after swimming.
The best approach to sun tanning is common sense. This large envelope we call the skin has to last a lifetime, so give it the protection it deserves.
A word about those tanning salons that have sprung up all over the country. Although advertised as using the “safer” long-wave ultraviolet rays (UVA), the lamps used in these salons are fraught with the same hazards as other forms of radiation. There are definite dangers associated with repeated exposure to UVA. These ray go deeper into the skin and, in addition to the premature aging, wrinkles, the loss of elasticity, and the potential for developing skin cancer, other harmful effects may include:
- Damage to the eyes, resulting in cataracts.
- Aggravation of existing skin damage caused by sun exposure.
- Aggravation of “light-sensitive” skin disorders, such as cold sores and lupus erythematosus.
- Damage to older people who already have thinner skin.
- Adverse allergic reactions to certain soaps, toiletries, high blood pressure medications, tranquilizers, medications for diabetes, birth control pills, etc.
- Damage to the immune system making the body more susceptible to cancers and infections.
- Damage to the vascular system.
In addition, there are many reported cases of people “catching” lice, scabies, herpes, fungous infections, warts, tinea versicolor, and other infectious diseases from those salons that are not strict about sanitizing their equipment.
One famous dermatologist once said, “I could never understand why people would pay to get skin cancer when they can get it free!”
Do your skin – and yourself – a favor: stay away from those artificial tanning rays.
A note about children’s skin: since children often spend many hours playing in the sun, protecting children’s skin from the sun’s harmful rays is one of the most important ways to promote their long-term health. Before sun exposure, always apply a sunscreen with an SPF of at least 15 to any child’s skin over the age of 6 months. Sun protection in childhood is extremely important to prevent skin cancer later in life.
read more: http://www.globusz.com/ebooks/Skin/00000050.htm
"I'd love to open a tennis school for children in my hometown of Sochi." said Sharapova Maria.