.: The Benefits, Joys and Danger of the Sunlight
By:Knut Holt
THE BENEFITS OF THE SUN-RAYS
If the exposure to sun light is moderate, the benefits outnumber the dangers. First of all sunshine has a good effect upon the mental health and well-being, both due to the visible light and to the warming effect.
The UVA rays in the sunlight stimulates the skin to produce vitamin D. This vitamin is necessary for the normal composition, growth and regeneration of bone tissue. By to low levels of vitamin D in the body, the bones tend to loose calcium and get thinner and weaker. Newer findings suggest that many people do not get enough of this vitamin through the diet or do not absorb enough from the intestines, and need this stimulation to get good enough levels of vitamin D.
Newer findings also suggest that moderate amount of sunshine does not promote the occurence of skin cancer. On the contrary, in moderate amounts, exposure to sunshine seems to help prevent cancers of several types., especially breast cancer, colon cancer and prostate cancer.
The benefit that most people go for when engaging in sun bath, is the browning effect. This effect comes from the UVA rays stimulating the melanocytes in the skin to produce more of the brown pigment - melanin. The increased amount of melanin will protect the skin against the harms of sun-rays, and make you tolerate greater amounts of sun before harmful effects occur. The sun rays also stimulate the upper layer of the skin to grow thicker, and this makes the skin more robust against damage. As long as this thickening is moderate, the thickening is a good effect.
THE DANGERS OF THE SUN-RAYS
The most visible danger of exaggerated sun exposure is the burning effect caused by the UVB rays. The effect is mostly due to immune cells in the skin releasing histamine. Histamine then causes blood vessels to dilate and also cause other symptoms of acute inflammation. Some cells will also be injured by the sunlight to such extend that they die, causing the upper layer of the skin to flake away.
.
Exaggerated exposure to sun can cause brown spots - liver-spots. Furthermore it can cause the cancer type called basal cell carcinoma. These effects are caused both from the UVA and UVB rays. This type of cancer looks like brown flakes or brown spots, and may be difficult to distinguish from liver-spots. However, this kind of cancer is little malignant, and is in many cases just a cosmetic problem.
But the UVA and UVB rays from too much sun exposure can also cause malignant melanoma. This cancer consists of melanocyte cells been transformed into cancer cell. Malignant melanoma often evolves from birth marks. This cancer can remain small for a long time, but can also spread and develop very rapidly and swiftly evolve into a serious disease. In its initial stages, the cancer looks like an irregularly shaped and abnormally or irregularly coloured birthmark. People having been exposed to much sun and often been sunburned form an early age, are in special risk for malignant melanoma.
Traditionally skin cancers were thought to be caused by the UVB rays, but newer findings suggest that the whole ultraviolet spectre participates in causing cancers. Therefore using solariums that gives off only UVA rays is not safe from cancer risk.
Too much sun exposure for a long time will increase the speed of skin aging and cause permanent changes in the skin, due to the effects of UVB rays. The wrinkles will multiply and aggravate. Also the blood vessels in the skin tend to become permanently dilated and areas of the skin will often get an abnormal or irregular thickness, some places too thin, other places too thick. Due to the widened blood vessels, the skin will be permanently red.
UVC rays are normally filtered out from by the ozone layer in the upper atmosphaere. Nowadays this layer is wakened over certain areas in certain times. These rays are the most dangerous and easily cause cancer and other types of skin damage.
WHAT IS THE BEST PROTECTION AGAINST SUNLIGHT
The best way to get just enough sun exposure to get the benefits, but not so much to suffer the harms caused by sun rays, is just to expose your skin for the sun some time, and then cover the skin by clothes.
The time recomanded for naked exposure vary considerably. A person with brown skin can take much more than a pale person. The same is true about a person with thick skin. As you get used to the sun each year, you will gradually get browner and also tolerate more. If you take sunbath for the first time in the year, and you have not yet get used to the sun, 10-15 minutes may be enough.
However, often you want to expose your skin to the sun rays longer than an unprotected skin can tolerate, and then you have to use some topical sun protection. Sun balms are found with protection from 3 to 30. The protection factor is supposed to tell how many times longer you can be in the sunshine with the balm on, than without the balm. Be aware that the real protection factor may be less than that written on the bottle.
A balm with the factor 20 does not always really have that factor. If you know you can tolerate 0.5 hours exposure without protection, do not think that you really will tolerate 10 hours exposure with a balm of factor 20 on. The balm must also be renewed several times during the time you expose yourself for the sun. That is especially true if you take swims. The balm must neither be too old.
The face is the body part that it is most important to protect against the sun, since the face does not have any clothes on, and accordingly gets longest sun exposure.
Some kinds of nutrition seems to make the skin more robust against the impact from sun rays. It is for example wise to eat much fish and use olive oil in the diet. You should also attend to the news about the ozone layer, and always protect your skin in periods with weakened ozone layer.
Article keywords: the, danger, and, benefits, joys, injuries, health, of, sun.bath.rays, how, to, get, the, best, out, of, protect, yourself, against, skin, cancer, liver.spots, wrinkles
Article Source: http://www.articles32.com
By Knut Holt
Knut Holt is an internet consultant and marketer focusing on health items. TO FIND anti-aging supplements and natural medicines against hypothyroidism, joint pain, heart disease, hemorrhoids, depression, acne, eczema, rosacea, scars, wrinkles, other skin problem and much more PLEASE VISIT his web-site:----
www.abicana.com/shop2.htm
----Free to reprint with the author's name and link.
This article can freely be copied and distributed, as long as the authors name and the links follows the copy.
.: New Health Articles
1). Breakthrough: Why Understanding Separation Anxiety Disorder Will Ultimately Cure It
Understanding Separation Anxiety Disorder Will Ultimately Cure It. Separation anxiety is not only common to kids and parents. Believe it or not, it is also what your dog feels every time you leave them.
2). Should You Worry About Global Warming?
What to do instead of worrying about things beyond your control like Global Warming.
3). Causes of Eczema on Hands and Effective Treatment
One of the most annoying forms of eczema is atopic eczema on hands. In this area it can get very irritating indeed. With the constant use of the hands, and their easy reaching access, the itching can become unbearable, and scratching the itch can become a habit which leads to a very severe rash in some people
4). Are You Looking For Simple and Good Panic Attack Help Tips
This article is about how to look for good and simple anxiety attack help tips and what are the various available options for the sufferer.
5). Can Child Panic Attack Be Deadly and What Are Its Tips and Solutions
This article is about what the tips, solutions and options to help the parents and the child, when a child has anxiety attacks.
6). Life as a Compulsive Overeater
This article talks of the struggles of being a compulsive overeater and the cycle of weight loss and weight gain.
7). Improving the Outcome of Stroke
The majority of strokes occur when a blood clot lodges in a blood vessel, blocking blood flow to a portion of your brain (ischemic stroke). The group of brain cells normally nourished by the oxygen in the affected blood vessels dies almost immediately after blood flow is blocked, while surrounding brain cells experience reduced blood flow.
.: Top Health Articles
1). The Hottest Hair Trends And The Sexiest Hairstyles For 2007
Copyright 2006 David Maillie
Hair has become unequivocally important as it can literally make one look like a movie star or a has been from Hee Haw, which died out many years ago. It is big enough that it is a multi billion dollar industry and the average bill in a salon is approaching $100. In the big cities with a hot hairstylist like Jonathon in Beverly Hills prices can easily top $500 for a cut and style.
2). Collarbone Injury
The clavicle or “collar bone” connects the scapula bone in the shoulder to the sternum in your chest. It functions to hold the shoulder upward and backward.
Clavicle fractures are common bone injuries. A break in the clavicle bone is usually a closed fracture that normally takes approximately 6 weeks to heal in an adult, 4 weeks in a child. The injury rarely requires surgery.
3). Cervical Radiculopathy: Diagnosing a Pinched Nerve in the Neck
When a nerve is pinched in the neck’s spinal column, pain can be such a prominent symptom that more subtle, but diagnostic, aspects are overlooked.
By way of background, the spinal cord in the neck is connected to the nerves of the arms through pairs of spinal nerves. These spinal nerves, also known as roots or “radicles,” transmit incoming messages (electrical impulses) from the arms’ nerves concerning sensations of touch, pain, heat and cold on various patches of skin.
4). Can Chocolate Really Kill Your Dog
We have all heard this all of our lives but how big a threat is it really? Is it life threatening or will it just make him sick? How much chocolate does the animal have to eat for it to cause a negative reaction?
5). Get That Flat Stomach Look? Get Rid Of Big Tummy, Pot Belly And Beer Belly Fast.
How to get that flat stomach look and get rid of big tummy, pot belly and beer belly fast?
By exercising your Transversus Abdominus Muscle. This is the muscle in your abdomen that holds your stomach in giving you the flat belly look. This muscle acts like a corset around your tummy by holding your tummy in and if the muscle is weak, your belly will be distended more easily making your tummy looking much bigger than it should just like having a beer belly.
6). How Long Will It Take To Gain Muscles| Build Muscle Mass
There are many factors to consider when you want to know how long will it take for you to gain and build muscle mass. Questions like are you eating enough and the right nutrients to accelerate muscle growth, are you exercising correctly and regularly and do you have the genes for quick muscle growth need to be addressed.
In this article, we shall discuss whether you have the genetic make up to gain and build muscles quickly.
7). Muscle Imbalance And Chronic Injuries
Injuries can occur anywhere and at anytime, but the most prevalent place of occurrence is in the workplace. The reason for such a high rate of injury is that people spend 8-18 hours a day, 5-7 days a week performing unidirectional (one-way) movement patterns, causing an imbalance in the musculoskeletal system that results in the overuse and under use of certain muscle groups.