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The ads lure vacationers to warm places with beaches, ocean views and plenty of sun. The pictures show tanned bodies lying next to swimming pools with the sun high in the sky.Everyone looks so healthy and vibrant. No one seems to have a care in the world. We have all felt the warmth of the sun on our skin at some time in our lives and we can only imagine how we would feel if we were one of the lucky ones in the picture.
We all need some sun exposure; its our primary source of vitamin D, which helps us absorb calcium for stronger, healthier bones. Exposure to sunlight is important to prevent and/or in lowering the incidents and severity of heart disease. Sunlight markedly decreases cholesterol levels in the blood and in the linings of the blood vessels and arteries. The Sun and Health Institute (http//www.sunstock.com/sunlight.html#Sun as Friend) report that study was done using 0 patients who had hardening of the arteries. Each of these patients blood cholesterol levels was taken before a single sunlight treatment. The results showed that there was at least a 1% decrease in blood cholesterol following the sunlight treatment.
Athletes and body builders commonly use sunlight before performances or contests to not only increase their stamina; endurance; and performance, but also to reduce body weight and fats in the tissue. Sunlights ability to increase the oxygen carrying capacity of the blood is another of the major ways in which it aids the body to cleanse the blood stream and tissues and to destroy bacteria. The Sun and Health Institute confirm that a growing amount of evidence is accumulating to show that the lack of oxygen may be a contributing factor in the initial injury to the lining of the artery that occurs in hardening of the arteries. A lack of oxygen in the bloodstream appears to weaken the lining of the artery and then make it more susceptible to injury. A lack of oxygen also aggravates the injury and prevents it from healing properly and quickly.
It has been shown in tests that ultraviolet light in natural sunlight actually increases the oxygen in the blood and the oxygen carrying capabilities of the blood. It also increases the use of this available oxygen in the tissues, which in turn can produce more available energy! The main explanation of how the sun increases the oxygen carrying capacity of the blood is that it has a tremendous ability to actually destroy cholesterol. As the cholesterol is changed in the skin to Vitamin D, transformed through sunlight to this so called vitamin, which is actually by definition a hormone in chemical structure, the cholesterol in the blood is transferred to the skin where it is transformed also. This decreases the cholesterol levels in the bloodstream while increasing natural Vitamin D storage in the body.
According to the National Institute of Mental Health (http//www.nimh.nih.gov/)
Along with food, air, and water, sunlight is a most important
Survival factor in human life.Solar radiation activates other
important biochemical events in our bodies involved in endocrine
control, timing of our biological clocks, entrainment of 4-hour
circadian rhythms, immunologic responsiveness, sexual growth and
development, regulation of stress and fatigue, control of viral and
cold infections, and dampening of functional disorders of the
nervous system."
From the above it can be seen that light has both psychological and biological affects on humans.This explains why on a rainy, overcast day you feel tired and gloomy but on a sunny day you typically feel cheerful and energized.The feelings that you have on these days result from the abundance or lack of a certain chemical that your body releases depending upon the amount of light you are exposed to. According to Dr. Gila Lindsley, A.C.P (http//www.newtechpub.com), "the amount of light seems to determine how much melatonin is actually released and secreted into the blood stream. The more light, the more release is suppressed. The less light, the more melatonin the blood carries. Light suppresses melatonin release." Melatonin acts as a natural sleeping pill.As the light we are exposed to is reduced, as it is in the evening, the melatonin is released and you become sleepy.On days the rainy, overcast days melatonin is released earlier than usual and the tired and gloomy feeling result. Scientists who have researched this physical process have determined that light affects the way someone feels well beyond the daily variations that occur as a result of weather conditions.It is no wonder that people flock to beaches on the shore so the suns rays can invigorate them.They become energized and, at the same time, they get a tan, which is seen as the look of a healthy body. What could be wrong with relaxing while basking in the sun and enjoying the suns rays as many have done in years past.
Well, according to the American Academy of Dermatology (http//www.aad.org/) and the Skin Cancer Foundation (http//www.skincancer.org/), the sun worshipers are at risk of getting skin cancer. The picture of sunbathers should show everyone with bottles of sunscreen at their side with a sun protection factor (SPF) or 15 or higher.It should also show hats being worn for shade of both the face and neck.Lastly the picture should not include anyone out for an extended time during the hours between 1000 am and 00 pm when the sun is the most intense. These safeguards against skin cancer are not just meant for use when on vacation but are recommended to be part of our daily lives.
The sun provides us with life itself, and with many of its pleasures. Yet the sun is enemy as well as friend. According to the American Medical Association, more than 0% of all skin cancers are the result of exposure to the ultraviolet radiation of the sun. This does not mean that we should stay out of the sun entirely. It simply means that every person should follow the common-sense practices of sun protection which include
1.Minimize exposure when the sun is at its peak.
. Wear protective clothing, including a wide-brimmed hat and sunglasses.
. Use a sunscreen with an SPF of 15 or greater.
These above tips are particularly important for children, since research has shown that 80% of a lifetimes sun exposure is experienced before the age of 18.
Common sense would tell you that if you want to be outside when the sun is out the one sure way to protect yourself is to wear more than a swimming suit. Research from the Morehouse School of Medicine (http//www.msm.edu/), suggests that shorts and polo shirts do not adequately protect against solar ultraviolet radiation (UV) and skin cancer. The summer fabrics were found to have a SPF of 6.5, which were tested against fabrics, made especially to protect the wearer from the sun and had an SPF of 0.
Head researcher J. M. Menter, Ph.D stated that sun-sensitive people who spend a good deal of time outside may be at significant risk for skin cancer while wearing the typical shorts and shirt, however, the high SPF clothing offered an effective protection against both short-term and long-term damage. The new high-SPF clothing, developed for patients with photosensitive skin or skin cancer, is an obvious choice for protection against the sun rays but the question on how practical and widely they will be has to be considered. For these reasons, some basic guidelines are helpful.
Research shows that a variety of everyday apparel offers excellent sun protection. Some materials, such as polyester and bleached cotton are quite transparent to ultraviolet rays and should be avoided in the sun. But other everyday materials such as unbleached cotton have high SPFs. In addition, thin, satiny silk can be highly protective because it reflects radiation. It has also been shown that the weave of the fabric may have more to do with the protection than the materials itself.
In general, the tighter the weave or knit, the higher the SPF. A simple test to compare one piece of clothing to another is to simply hold the material up to a window or lamp and see how much light gets through. Darker clothes also generally have a higher SPF. The final note on clothing is that almost all garments lose about a third of their sun-protective ability when wet.
For those body parts that are not typically covered by clothing (i.e. face, ears, neck, eyes) steps should also be taken for protection.Broad brimmed hats and sunglasses are effective for protecting these areas.
Now that we know what the right clothing and accessories are, it is time to find out who is actually at risk for skin cancer.
While people of all ethnic groups and skin types can be affected, people with fair skin, and people of any skin type who are exposed to the sun for extended periods are at a higher risk.
According to the American Academy of Family Physicians (AAFP) (http//www.familydoctor.org), skin types are classified into six groups according to the tendency to sunburn
Type I
is someone who always burns, never tans and is very fair, with red or blond hair, and freckles.
Type II
is someone who burns easily, and tans minimally. This person is usually fair-skinned.
Type III
is someone who sometimes burns and gradually tans.
Type IV
is someone who has minimal burning, and who always tans.
Type V
is someone who very seldom burns, always tans and has medium-to-heavy pigmentation.
Type VI
is someone who never burns, but tans darkly. This includes African Americans as well as others with heavy pigmentation.
People who have an outdoor occupation are at increased risk, as are outdoor sports enthusiasts. Anyone who spends considerable time in the sun or lives in a sunny climate may develop skin cancer. It should also be noted that damage to the skin by sun exposure accumulates over a lifetime, and excessive exposure, even in short durations can lead to skin cancer at any time.
Beyond the obvious fact that unprotected skin can be damaged it has also been shown that the level of UV light today is higher than it was 50 or 100 years ago. This is due to a reduction of ozone in the earths atmosphere (the Ozone Hole). Ozone serves as a filter to screen out and reduce the amount of UV light that we are exposed to. With less ozone, a higher level of UV light reaches the earths surface.
There are also other factors which affect the intensity of the sunlight we are exposed to which include elevation, latitude and cloud cover. Ultra Violet light is stronger as elevation increases. The thinner atmosphere at higher altitudes cannot filter UV as effectively as it can at sea level. The rays of the sun are also strongest near the equator, but even in Antarctica, Chile, and New Zealand, the UV level is much higher than normal due to the ozone hole in the southern hemisphere.
One factor that actually reduces UV is cloud cover. Climates with regular cloud cover may have a 50% lower level of UV light.
Based upon the above information it seems that there is no safe way to lay out in the sun and get a tan. And if you cannot at least enjoy the warmth of the sun on your skin you would think you could at least get a tan using a tanning booth. Unfortunately, the AAFP has found that tanning booths use ultraviolet rays and makers of the booths may claim that they use harmless UVA rays. But both UVA and UVB rays cause skin damage. While UVA rays take longer than UVB rays to damage the skin, they go deeper into the skin than UVB rays.
It seems like there is no safe way to enjoy the sun.Something as beautiful and inviting as an ocean beach is off limits.Even the warm, sunny day on campus can no longer be an excuse to lay out in the grass and "catch a few rays".Nothing actually can be further from the truth.
The sun can be enjoyed but the way we go about it has to change.We should no longer layout for long hours, unprotected and get sunburned and be at risk.We simply need to follow a few steps before we lay our beach blanket out starting with applying sunblock with an SPF of 15 or greater 0 minutes before you go outside. Not only does this ensure that you wont miss spots that are hard to reach on the beach, but youll be protected from the incidental sun exposure youll get on your way out to your favorite location.Sunblocks should be reapplied every - hours and a "total sunblock" such as zinc oxide should be put on your nose, ears and lips.There are those who will say that if they have to go through all of this just to be safe they would rather look good and take the risk.To those who feel this way, they may want to brush up on the latest statistics
According to the American Cancer Society (http//www.cancer.org/) "in 000 there will be over 1,000,000 new cases of all skin cancers, up from 700,000 in 17 and 400,000 in 185. The society predicts there will be 4,100 new cases of malignant melanoma--15,400 in women and 18,700 in men, with 7,00 deaths from melanomas 4,500 for men and ,700 for women and about percent of malignant melanomas are in people younger than 0."
The bottom line to this discussion is that the sun can be enjoyed but like anything else good in this world it is best done in moderation.
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